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Finding the Fourth Proportional to 24,079.80, 36,119.70 and 20,191.80

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Solution

The fourth proportional to 24,079.80, 36,119.70 and 20,191.80 is: 30,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,079.80 : 36,119.70 = 20,191.80 : x
  2. Step 2: Convert to fraction form
    24,079.80/36,119.70 = 20,191.80/x
  3. Step 3: Cross multiply
    24,079.80x = 36,119.70 × 20,191.80
  4. Step 4: Simplify right side
    24,079.80x = 729,321,758.46
  5. Step 5: Solve for x
    x = 729,321,758.46/24,079.80
  6. Step 6: Final answer
    x = 30,287.70

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1.5x scale

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.