Home / 25,565.28-35,281.54-15,359.43

Finding the Fourth Proportional to 25,565.28, 35,281.54 and 15,359.43

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Solution

The fourth proportional to 25,565.28, 35,281.54 and 15,359.43 is: 21,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.28 : 35,281.54 = 15,359.43 : x
  2. Step 2: Convert to fraction form
    25,565.28/35,281.54 = 15,359.43/x
  3. Step 3: Cross multiply
    25,565.28x = 35,281.54 × 15,359.43
  4. Step 4: Simplify right side
    25,565.28x = 541,904,343.92
  5. Step 5: Solve for x
    x = 541,904,343.92/25,565.28
  6. Step 6: Final answer
    x = 21,196.89

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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.