Home / 38,958.64-58,444.11-12,657.24

Finding the Fourth Proportional to 38,958.64, 58,444.11 and 12,657.24

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Solution

The fourth proportional to 38,958.64, 58,444.11 and 12,657.24 is: 18,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,958.64 : 58,444.11 = 12,657.24 : x
  2. Step 2: Convert to fraction form
    38,958.64/58,444.11 = 12,657.24/x
  3. Step 3: Cross multiply
    38,958.64x = 58,444.11 × 12,657.24
  4. Step 4: Simplify right side
    38,958.64x = 739,741,126.86
  5. Step 5: Solve for x
    x = 739,741,126.86/38,958.64
  6. Step 6: Final answer
    x = 18,987.86

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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.