Home / 38,631.60-57,943.68-12,331.68

Finding the Fourth Proportional to 38,631.60, 57,943.68 and 12,331.68

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Solution

The fourth proportional to 38,631.60, 57,943.68 and 12,331.68 is: 18,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.60 : 57,943.68 = 12,331.68 : x
  2. Step 2: Convert to fraction form
    38,631.60/57,943.68 = 12,331.68/x
  3. Step 3: Cross multiply
    38,631.60x = 57,943.68 × 12,331.68
  4. Step 4: Simplify right side
    38,631.60x = 714,542,919.78
  5. Step 5: Solve for x
    x = 714,542,919.78/38,631.60
  6. Step 6: Final answer
    x = 18,496.33

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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.