Home / 38,520.60-57,780.90-12,227.40

Finding the Fourth Proportional to 38,520.60, 57,780.90 and 12,227.40

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Solution

The fourth proportional to 38,520.60, 57,780.90 and 12,227.40 is: 18,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.60 : 57,780.90 = 12,227.40 : x
  2. Step 2: Convert to fraction form
    38,520.60/57,780.90 = 12,227.40/x
  3. Step 3: Cross multiply
    38,520.60x = 57,780.90 × 12,227.40
  4. Step 4: Simplify right side
    38,520.60x = 706,510,176.66
  5. Step 5: Solve for x
    x = 706,510,176.66/38,520.60
  6. Step 6: Final answer
    x = 18,341.10

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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.