Home / 38,521.31-57,781.35-12,225.74

Finding the Fourth Proportional to 38,521.31, 57,781.35 and 12,225.74

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Solution

The fourth proportional to 38,521.31, 57,781.35 and 12,225.74 is: 18,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521.31 : 57,781.35 = 12,225.74 : x
  2. Step 2: Convert to fraction form
    38,521.31/57,781.35 = 12,225.74/x
  3. Step 3: Cross multiply
    38,521.31x = 57,781.35 × 12,225.74
  4. Step 4: Simplify right side
    38,521.31x = 706,419,473.04
  5. Step 5: Solve for x
    x = 706,419,473.04/38,521.31
  6. Step 6: Final answer
    x = 18,338.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.