Home / 38,565.10-57,845.22-12,288.70

Finding the Fourth Proportional to 38,565.10, 57,845.22 and 12,288.70

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Solution

The fourth proportional to 38,565.10, 57,845.22 and 12,288.70 is: 18,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.10 : 57,845.22 = 12,288.70 : x
  2. Step 2: Convert to fraction form
    38,565.10/57,845.22 = 12,288.70/x
  3. Step 3: Cross multiply
    38,565.10x = 57,845.22 × 12,288.70
  4. Step 4: Simplify right side
    38,565.10x = 710,842,555.01
  5. Step 5: Solve for x
    x = 710,842,555.01/38,565.10
  6. Step 6: Final answer
    x = 18,432.28

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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.