Home / 20,132.92-30,210.23-11,829.15

Finding the Fourth Proportional to 20,132.92, 30,210.23 and 11,829.15

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Solution

The fourth proportional to 20,132.92, 30,210.23 and 11,829.15 is: 17,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.92 : 30,210.23 = 11,829.15 : x
  2. Step 2: Convert to fraction form
    20,132.92/30,210.23 = 11,829.15/x
  3. Step 3: Cross multiply
    20,132.92x = 30,210.23 × 11,829.15
  4. Step 4: Simplify right side
    20,132.92x = 357,361,371.78
  5. Step 5: Solve for x
    x = 357,361,371.78/20,132.92
  6. Step 6: Final answer
    x = 17,750.10

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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.