Home / 23,129.28-31,917.24-13,700.88

Finding the Fourth Proportional to 23,129.28, 31,917.24 and 13,700.88

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Solution

The fourth proportional to 23,129.28, 31,917.24 and 13,700.88 is: 18,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.28 : 31,917.24 = 13,700.88 : x
  2. Step 2: Convert to fraction form
    23,129.28/31,917.24 = 13,700.88/x
  3. Step 3: Cross multiply
    23,129.28x = 31,917.24 × 13,700.88
  4. Step 4: Simplify right side
    23,129.28x = 437,294,275.17
  5. Step 5: Solve for x
    x = 437,294,275.17/23,129.28
  6. Step 6: Final answer
    x = 18,906.52

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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.