Home / 25,565.40-38,349.86-8,691.55

Finding the Fourth Proportional to 25,565.40, 38,349.86 and 8,691.55

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Solution

The fourth proportional to 25,565.40, 38,349.86 and 8,691.55 is: 13,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.40 : 38,349.86 = 8,691.55 : x
  2. Step 2: Convert to fraction form
    25,565.40/38,349.86 = 8,691.55/x
  3. Step 3: Cross multiply
    25,565.40x = 38,349.86 × 8,691.55
  4. Step 4: Simplify right side
    25,565.40x = 333,319,490.48
  5. Step 5: Solve for x
    x = 333,319,490.48/25,565.40
  6. Step 6: Final answer
    x = 13,037.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.