Home / 38,508.11-57,761.70-12,213.08

Finding the Fourth Proportional to 38,508.11, 57,761.70 and 12,213.08

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Solution

The fourth proportional to 38,508.11, 57,761.70 and 12,213.08 is: 18,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,508.11 : 57,761.70 = 12,213.08 : x
  2. Step 2: Convert to fraction form
    38,508.11/57,761.70 = 12,213.08/x
  3. Step 3: Cross multiply
    38,508.11x = 57,761.70 × 12,213.08
  4. Step 4: Simplify right side
    38,508.11x = 705,447,974.23
  5. Step 5: Solve for x
    x = 705,447,974.23/38,508.11
  6. Step 6: Final answer
    x = 18,319.47

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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.