Home / 39,772.32-59,644.56-13,469.28

Finding the Fourth Proportional to 39,772.32, 59,644.56 and 13,469.28

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Solution

The fourth proportional to 39,772.32, 59,644.56 and 13,469.28 is: 20,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.32 : 59,644.56 = 13,469.28 : x
  2. Step 2: Convert to fraction form
    39,772.32/59,644.56 = 13,469.28/x
  3. Step 3: Cross multiply
    39,772.32x = 59,644.56 × 13,469.28
  4. Step 4: Simplify right side
    39,772.32x = 803,369,279.12
  5. Step 5: Solve for x
    x = 803,369,279.12/39,772.32
  6. Step 6: Final answer
    x = 20,199.21

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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.