Home / 38,433.60-57,655.80-12,135.60

Finding the Fourth Proportional to 38,433.60, 57,655.80 and 12,135.60

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Solution

The fourth proportional to 38,433.60, 57,655.80 and 12,135.60 is: 18,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,433.60 : 57,655.80 = 12,135.60 : x
  2. Step 2: Convert to fraction form
    38,433.60/57,655.80 = 12,135.60/x
  3. Step 3: Cross multiply
    38,433.60x = 57,655.80 × 12,135.60
  4. Step 4: Simplify right side
    38,433.60x = 699,687,726.48
  5. Step 5: Solve for x
    x = 699,687,726.48/38,433.60
  6. Step 6: Final answer
    x = 18,205.11

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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.