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Finding the Fourth Proportional to 39,695.70, 59,531.01 and 13,037.30

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Solution

The fourth proportional to 39,695.70, 59,531.01 and 13,037.30 is: 19,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,695.70 : 59,531.01 = 13,037.30 : x
  2. Step 2: Convert to fraction form
    39,695.70/59,531.01 = 13,037.30/x
  3. Step 3: Cross multiply
    39,695.70x = 59,531.01 × 13,037.30
  4. Step 4: Simplify right side
    39,695.70x = 776,123,401.75
  5. Step 5: Solve for x
    x = 776,123,401.75/39,695.70
  6. Step 6: Final answer
    x = 19,551.82

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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.