Home / 20,116.52-30,147.18-15,182.12

Finding the Fourth Proportional to 20,116.52, 30,147.18 and 15,182.12

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Solution

The fourth proportional to 20,116.52, 30,147.18 and 15,182.12 is: 22,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.52 : 30,147.18 = 15,182.12 : x
  2. Step 2: Convert to fraction form
    20,116.52/30,147.18 = 15,182.12/x
  3. Step 3: Cross multiply
    20,116.52x = 30,147.18 × 15,182.12
  4. Step 4: Simplify right side
    20,116.52x = 457,698,104.42
  5. Step 5: Solve for x
    x = 457,698,104.42/20,116.52
  6. Step 6: Final answer
    x = 22,752.35

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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.