Home / 20,935.39-31,347.17-17,613.88

Finding the Fourth Proportional to 20,935.39, 31,347.17 and 17,613.88

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Solution

The fourth proportional to 20,935.39, 31,347.17 and 17,613.88 is: 26,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.39 : 31,347.17 = 17,613.88 : x
  2. Step 2: Convert to fraction form
    20,935.39/31,347.17 = 17,613.88/x
  3. Step 3: Cross multiply
    20,935.39x = 31,347.17 × 17,613.88
  4. Step 4: Simplify right side
    20,935.39x = 552,145,045.91
  5. Step 5: Solve for x
    x = 552,145,045.91/20,935.39
  6. Step 6: Final answer
    x = 26,373.77

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1.5x scale

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.