Home / 20,132.52-30,192.70-8,443.14

Finding the Fourth Proportional to 20,132.52, 30,192.70 and 8,443.14

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Solution

The fourth proportional to 20,132.52, 30,192.70 and 8,443.14 is: 12,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.52 : 30,192.70 = 8,443.14 : x
  2. Step 2: Convert to fraction form
    20,132.52/30,192.70 = 8,443.14/x
  3. Step 3: Cross multiply
    20,132.52x = 30,192.70 × 8,443.14
  4. Step 4: Simplify right side
    20,132.52x = 254,921,193.08
  5. Step 5: Solve for x
    x = 254,921,193.08/20,132.52
  6. Step 6: Final answer
    x = 12,662.16

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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.