Home / 27,703.48-38,230.67-15,128.23

Finding the Fourth Proportional to 27,703.48, 38,230.67 and 15,128.23

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Solution

The fourth proportional to 27,703.48, 38,230.67 and 15,128.23 is: 20,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,703.48 : 38,230.67 = 15,128.23 : x
  2. Step 2: Convert to fraction form
    27,703.48/38,230.67 = 15,128.23/x
  3. Step 3: Cross multiply
    27,703.48x = 38,230.67 × 15,128.23
  4. Step 4: Simplify right side
    27,703.48x = 578,362,293.17
  5. Step 5: Solve for x
    x = 578,362,293.17/27,703.48
  6. Step 6: Final answer
    x = 20,876.88

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Half scale
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Double scale
Find fourth proportional to 27,704.48, 38,232.04 and 15,129.23
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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.