Home / 28,232.01-38,960.06-15,656.76

Finding the Fourth Proportional to 28,232.01, 38,960.06 and 15,656.76

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Solution

The fourth proportional to 28,232.01, 38,960.06 and 15,656.76 is: 21,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.01 : 38,960.06 = 15,656.76 : x
  2. Step 2: Convert to fraction form
    28,232.01/38,960.06 = 15,656.76/x
  3. Step 3: Cross multiply
    28,232.01x = 38,960.06 × 15,656.76
  4. Step 4: Simplify right side
    28,232.01x = 609,988,230.72
  5. Step 5: Solve for x
    x = 609,988,230.72/28,232.01
  6. Step 6: Final answer
    x = 21,606.26

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Find fourth proportional to 14,116.01, 19,480.03 and 7,828.38
Half scale
Find fourth proportional to 56,464.02, 77,920.11 and 31,313.52
Double scale
Find fourth proportional to 28,233.01, 38,961.43 and 15,657.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.