Home / 25,164.62-34,695.14-15,729.74

Finding the Fourth Proportional to 25,164.62, 34,695.14 and 15,729.74

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Solution

The fourth proportional to 25,164.62, 34,695.14 and 15,729.74 is: 21,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,164.62 : 34,695.14 = 15,729.74 : x
  2. Step 2: Convert to fraction form
    25,164.62/34,695.14 = 15,729.74/x
  3. Step 3: Cross multiply
    25,164.62x = 34,695.14 × 15,729.74
  4. Step 4: Simplify right side
    25,164.62x = 545,745,531.46
  5. Step 5: Solve for x
    x = 545,745,531.46/25,164.62
  6. Step 6: Final answer
    x = 21,687.02

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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.