Home / 38,380.43-52,964.89-21,385.42

Finding the Fourth Proportional to 38,380.43, 52,964.89 and 21,385.42

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Solution

The fourth proportional to 38,380.43, 52,964.89 and 21,385.42 is: 29,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.43 : 52,964.89 = 21,385.42 : x
  2. Step 2: Convert to fraction form
    38,380.43/52,964.89 = 21,385.42/x
  3. Step 3: Cross multiply
    38,380.43x = 52,964.89 × 21,385.42
  4. Step 4: Simplify right side
    38,380.43x = 1,132,676,232.03
  5. Step 5: Solve for x
    x = 1,132,676,232.03/38,380.43
  6. Step 6: Final answer
    x = 29,511.82

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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.