Home / 38,565.20-57,857.04-13,264.28

Finding the Fourth Proportional to 38,565.20, 57,857.04 and 13,264.28

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Solution

The fourth proportional to 38,565.20, 57,857.04 and 13,264.28 is: 19,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.20 : 57,857.04 = 13,264.28 : x
  2. Step 2: Convert to fraction form
    38,565.20/57,857.04 = 13,264.28/x
  3. Step 3: Cross multiply
    38,565.20x = 57,857.04 × 13,264.28
  4. Step 4: Simplify right side
    38,565.20x = 767,431,978.53
  5. Step 5: Solve for x
    x = 767,431,978.53/38,565.20
  6. Step 6: Final answer
    x = 19,899.60

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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.