Home / 38,398.71-52,990.10-21,402.83

Finding the Fourth Proportional to 38,398.71, 52,990.10 and 21,402.83

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Solution

The fourth proportional to 38,398.71, 52,990.10 and 21,402.83 is: 29,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.71 : 52,990.10 = 21,402.83 : x
  2. Step 2: Convert to fraction form
    38,398.71/52,990.10 = 21,402.83/x
  3. Step 3: Cross multiply
    38,398.71x = 52,990.10 × 21,402.83
  4. Step 4: Simplify right side
    38,398.71x = 1,134,138,207.70
  5. Step 5: Solve for x
    x = 1,134,138,207.70/38,398.71
  6. Step 6: Final answer
    x = 29,535.84

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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.