Home / 36,359.80-54,543.30-12,663.70

Finding the Fourth Proportional to 36,359.80, 54,543.30 and 12,663.70

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Solution

The fourth proportional to 36,359.80, 54,543.30 and 12,663.70 is: 18,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,359.80 : 54,543.30 = 12,663.70 : x
  2. Step 2: Convert to fraction form
    36,359.80/54,543.30 = 12,663.70/x
  3. Step 3: Cross multiply
    36,359.80x = 54,543.30 × 12,663.70
  4. Step 4: Simplify right side
    36,359.80x = 690,719,988.21
  5. Step 5: Solve for x
    x = 690,719,988.21/36,359.80
  6. Step 6: Final answer
    x = 18,996.80

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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.