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Finding the Fourth Proportional to 39,906.28, 59,841.02 and 11,816.28

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Solution

The fourth proportional to 39,906.28, 59,841.02 and 11,816.28 is: 17,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.28 : 59,841.02 = 11,816.28 : x
  2. Step 2: Convert to fraction form
    39,906.28/59,841.02 = 11,816.28/x
  3. Step 3: Cross multiply
    39,906.28x = 59,841.02 × 11,816.28
  4. Step 4: Simplify right side
    39,906.28x = 707,098,247.81
  5. Step 5: Solve for x
    x = 707,098,247.81/39,906.28
  6. Step 6: Final answer
    x = 17,718.97

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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.