Home / 38,568.10-57,849.72-12,291.70

Finding the Fourth Proportional to 38,568.10, 57,849.72 and 12,291.70

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Solution

The fourth proportional to 38,568.10, 57,849.72 and 12,291.70 is: 18,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,568.10 : 57,849.72 = 12,291.70 : x
  2. Step 2: Convert to fraction form
    38,568.10/57,849.72 = 12,291.70/x
  3. Step 3: Cross multiply
    38,568.10x = 57,849.72 × 12,291.70
  4. Step 4: Simplify right side
    38,568.10x = 711,071,403.32
  5. Step 5: Solve for x
    x = 711,071,403.32/38,568.10
  6. Step 6: Final answer
    x = 18,436.78

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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.