Home / 39,132.72-54,002.86-21,227.74

Finding the Fourth Proportional to 39,132.72, 54,002.86 and 21,227.74

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Solution

The fourth proportional to 39,132.72, 54,002.86 and 21,227.74 is: 29,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,132.72 : 54,002.86 = 21,227.74 : x
  2. Step 2: Convert to fraction form
    39,132.72/54,002.86 = 21,227.74/x
  3. Step 3: Cross multiply
    39,132.72x = 54,002.86 × 21,227.74
  4. Step 4: Simplify right side
    39,132.72x = 1,146,358,483.26
  5. Step 5: Solve for x
    x = 1,146,358,483.26/39,132.72
  6. Step 6: Final answer
    x = 29,294.12

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1.5x scale

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.