Home / 39,132.47-58,646.78-21,317.43

Finding the Fourth Proportional to 39,132.47, 58,646.78 and 21,317.43

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Solution

The fourth proportional to 39,132.47, 58,646.78 and 21,317.43 is: 31,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,132.47 : 58,646.78 = 21,317.43 : x
  2. Step 2: Convert to fraction form
    39,132.47/58,646.78 = 21,317.43/x
  3. Step 3: Cross multiply
    39,132.47x = 58,646.78 × 21,317.43
  4. Step 4: Simplify right side
    39,132.47x = 1,250,198,627.38
  5. Step 5: Solve for x
    x = 1,250,198,627.38/39,132.47
  6. Step 6: Final answer
    x = 31,947.86

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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.