Home / 20,116.13-30,192.80-10,262.75

Finding the Fourth Proportional to 20,116.13, 30,192.80 and 10,262.75

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Solution

The fourth proportional to 20,116.13, 30,192.80 and 10,262.75 is: 15,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.13 : 30,192.80 = 10,262.75 : x
  2. Step 2: Convert to fraction form
    20,116.13/30,192.80 = 10,262.75/x
  3. Step 3: Cross multiply
    20,116.13x = 30,192.80 × 10,262.75
  4. Step 4: Simplify right side
    20,116.13x = 309,861,158.20
  5. Step 5: Solve for x
    x = 309,861,158.20/20,116.13
  6. Step 6: Final answer
    x = 15,403.62

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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.