Home / 36,140.80-54,219.30-13,952.20

Finding the Fourth Proportional to 36,140.80, 54,219.30 and 13,952.20

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Solution

The fourth proportional to 36,140.80, 54,219.30 and 13,952.20 is: 20,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.80 : 54,219.30 = 13,952.20 : x
  2. Step 2: Convert to fraction form
    36,140.80/54,219.30 = 13,952.20/x
  3. Step 3: Cross multiply
    36,140.80x = 54,219.30 × 13,952.20
  4. Step 4: Simplify right side
    36,140.80x = 756,478,517.46
  5. Step 5: Solve for x
    x = 756,478,517.46/36,140.80
  6. Step 6: Final answer
    x = 20,931.43

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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.