Home / 38,398.90-52,994.78-21,404.70

Finding the Fourth Proportional to 38,398.90, 52,994.78 and 21,404.70

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Solution

The fourth proportional to 38,398.90, 52,994.78 and 21,404.70 is: 29,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.90 : 52,994.78 = 21,404.70 : x
  2. Step 2: Convert to fraction form
    38,398.90/52,994.78 = 21,404.70/x
  3. Step 3: Cross multiply
    38,398.90x = 52,994.78 × 21,404.70
  4. Step 4: Simplify right side
    38,398.90x = 1,134,337,367.47
  5. Step 5: Solve for x
    x = 1,134,337,367.47/38,398.90
  6. Step 6: Final answer
    x = 29,540.88

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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.