Home / 27,753.46-38,304.30-20,630.68

Finding the Fourth Proportional to 27,753.46, 38,304.30 and 20,630.68

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Solution

The fourth proportional to 27,753.46, 38,304.30 and 20,630.68 is: 28,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.46 : 38,304.30 = 20,630.68 : x
  2. Step 2: Convert to fraction form
    27,753.46/38,304.30 = 20,630.68/x
  3. Step 3: Cross multiply
    27,753.46x = 38,304.30 × 20,630.68
  4. Step 4: Simplify right side
    27,753.46x = 790,243,755.92
  5. Step 5: Solve for x
    x = 790,243,755.92/27,753.46
  6. Step 6: Final answer
    x = 28,473.70

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Double scale
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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.