Home / 39,616.52-54,670.88-21,712.19

Finding the Fourth Proportional to 39,616.52, 54,670.88 and 21,712.19

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Solution

The fourth proportional to 39,616.52, 54,670.88 and 21,712.19 is: 29,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,616.52 : 54,670.88 = 21,712.19 : x
  2. Step 2: Convert to fraction form
    39,616.52/54,670.88 = 21,712.19/x
  3. Step 3: Cross multiply
    39,616.52x = 54,670.88 × 21,712.19
  4. Step 4: Simplify right side
    39,616.52x = 1,187,024,425.47
  5. Step 5: Solve for x
    x = 1,187,024,425.47/39,616.52
  6. Step 6: Final answer
    x = 29,962.86

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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.