Home / 39,711.29-54,802.54-21,562.79

Finding the Fourth Proportional to 39,711.29, 54,802.54 and 21,562.79

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Solution

The fourth proportional to 39,711.29, 54,802.54 and 21,562.79 is: 29,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.29 : 54,802.54 = 21,562.79 : x
  2. Step 2: Convert to fraction form
    39,711.29/54,802.54 = 21,562.79/x
  3. Step 3: Cross multiply
    39,711.29x = 54,802.54 × 21,562.79
  4. Step 4: Simplify right side
    39,711.29x = 1,181,695,661.49
  5. Step 5: Solve for x
    x = 1,181,695,661.49/39,711.29
  6. Step 6: Final answer
    x = 29,757.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.