Home / 38,082.60-57,117.60-12,781.80

Finding the Fourth Proportional to 38,082.60, 57,117.60 and 12,781.80

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Solution

The fourth proportional to 38,082.60, 57,117.60 and 12,781.80 is: 19,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,082.60 : 57,117.60 = 12,781.80 : x
  2. Step 2: Convert to fraction form
    38,082.60/57,117.60 = 12,781.80/x
  3. Step 3: Cross multiply
    38,082.60x = 57,117.60 × 12,781.80
  4. Step 4: Simplify right side
    38,082.60x = 730,065,739.68
  5. Step 5: Solve for x
    x = 730,065,739.68/38,082.60
  6. Step 6: Final answer
    x = 19,170.59

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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.