Home / 20,144.30-30,216.45-15,473.30

Finding the Fourth Proportional to 20,144.30, 30,216.45 and 15,473.30

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Solution

The fourth proportional to 20,144.30, 30,216.45 and 15,473.30 is: 23,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.30 : 30,216.45 = 15,473.30 : x
  2. Step 2: Convert to fraction form
    20,144.30/30,216.45 = 15,473.30/x
  3. Step 3: Cross multiply
    20,144.30x = 30,216.45 × 15,473.30
  4. Step 4: Simplify right side
    20,144.30x = 467,548,195.79
  5. Step 5: Solve for x
    x = 467,548,195.79/20,144.30
  6. Step 6: Final answer
    x = 23,209.95

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Double scale
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Similar ratio
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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.