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Finding the Fourth Proportional to 24,377.80, 33,644.10 and 20,391.88

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Solution

The fourth proportional to 24,377.80, 33,644.10 and 20,391.88 is: 28,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,377.80 : 33,644.10 = 20,391.88 : x
  2. Step 2: Convert to fraction form
    24,377.80/33,644.10 = 20,391.88/x
  3. Step 3: Cross multiply
    24,377.80x = 33,644.10 × 20,391.88
  4. Step 4: Simplify right side
    24,377.80x = 686,066,449.91
  5. Step 5: Solve for x
    x = 686,066,449.91/24,377.80
  6. Step 6: Final answer
    x = 28,143.08

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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.