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Finding the Fourth Proportional to 28,797, 39,753.18 and 20,306.04

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Solution

The fourth proportional to 28,797, 39,753.18 and 20,306.04 is: 28,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797 : 39,753.18 = 20,306.04 : x
  2. Step 2: Convert to fraction form
    28,797/39,753.18 = 20,306.04/x
  3. Step 3: Cross multiply
    28,797x = 39,753.18 × 20,306.04
  4. Step 4: Simplify right side
    28,797x = 807,229,663.21
  5. Step 5: Solve for x
    x = 807,229,663.21/28,797
  6. Step 6: Final answer
    x = 28,031.73

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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.