Home / 39,872.56-59,814.89-13,571.15

Finding the Fourth Proportional to 39,872.56, 59,814.89 and 13,571.15

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Solution

The fourth proportional to 39,872.56, 59,814.89 and 13,571.15 is: 20,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.56 : 59,814.89 = 13,571.15 : x
  2. Step 2: Convert to fraction form
    39,872.56/59,814.89 = 13,571.15/x
  3. Step 3: Cross multiply
    39,872.56x = 59,814.89 × 13,571.15
  4. Step 4: Simplify right side
    39,872.56x = 811,756,844.42
  5. Step 5: Solve for x
    x = 811,756,844.42/39,872.56
  6. Step 6: Final answer
    x = 20,358.78

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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.