Home / 28,174.77-38,881.22-15,599.25

Finding the Fourth Proportional to 28,174.77, 38,881.22 and 15,599.25

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Solution

The fourth proportional to 28,174.77, 38,881.22 and 15,599.25 is: 21,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.77 : 38,881.22 = 15,599.25 : x
  2. Step 2: Convert to fraction form
    28,174.77/38,881.22 = 15,599.25/x
  3. Step 3: Cross multiply
    28,174.77x = 38,881.22 × 15,599.25
  4. Step 4: Simplify right side
    28,174.77x = 606,517,793.09
  5. Step 5: Solve for x
    x = 606,517,793.09/28,174.77
  6. Step 6: Final answer
    x = 21,526.98

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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.