Home / 39,905.76-59,864.31-13,614.78

Finding the Fourth Proportional to 39,905.76, 59,864.31 and 13,614.78

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Solution

The fourth proportional to 39,905.76, 59,864.31 and 13,614.78 is: 20,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.76 : 59,864.31 = 13,614.78 : x
  2. Step 2: Convert to fraction form
    39,905.76/59,864.31 = 13,614.78/x
  3. Step 3: Cross multiply
    39,905.76x = 59,864.31 × 13,614.78
  4. Step 4: Simplify right side
    39,905.76x = 815,039,410.50
  5. Step 5: Solve for x
    x = 815,039,410.50/39,905.76
  6. Step 6: Final answer
    x = 20,424.10

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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.