Home / 20,211.12-30,287.52-8,508.24

Finding the Fourth Proportional to 20,211.12, 30,287.52 and 8,508.24

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Solution

The fourth proportional to 20,211.12, 30,287.52 and 8,508.24 is: 12,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.12 : 30,287.52 = 8,508.24 : x
  2. Step 2: Convert to fraction form
    20,211.12/30,287.52 = 8,508.24/x
  3. Step 3: Cross multiply
    20,211.12x = 30,287.52 × 8,508.24
  4. Step 4: Simplify right side
    20,211.12x = 257,693,489.16
  5. Step 5: Solve for x
    x = 257,693,489.16/20,211.12
  6. Step 6: Final answer
    x = 12,750.08

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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.