Home / 36,439.98-54,689.67-18,914.82

Finding the Fourth Proportional to 36,439.98, 54,689.67 and 18,914.82

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Solution

The fourth proportional to 36,439.98, 54,689.67 and 18,914.82 is: 28,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.98 : 54,689.67 = 18,914.82 : x
  2. Step 2: Convert to fraction form
    36,439.98/54,689.67 = 18,914.82/x
  3. Step 3: Cross multiply
    36,439.98x = 54,689.67 × 18,914.82
  4. Step 4: Simplify right side
    36,439.98x = 1,034,445,263.91
  5. Step 5: Solve for x
    x = 1,034,445,263.91/36,439.98
  6. Step 6: Final answer
    x = 28,387.65

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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.