Home / 39,613.22-54,666.12-21,708.38

Finding the Fourth Proportional to 39,613.22, 54,666.12 and 21,708.38

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Solution

The fourth proportional to 39,613.22, 54,666.12 and 21,708.38 is: 29,957.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.22 : 54,666.12 = 21,708.38 : x
  2. Step 2: Convert to fraction form
    39,613.22/54,666.12 = 21,708.38/x
  3. Step 3: Cross multiply
    39,613.22x = 54,666.12 × 21,708.38
  4. Step 4: Simplify right side
    39,613.22x = 1,186,712,906.09
  5. Step 5: Solve for x
    x = 1,186,712,906.09/39,613.22
  6. Step 6: Final answer
    x = 29,957.50

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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.