Home / 20,062.20-30,079.43-8,812.11

Finding the Fourth Proportional to 20,062.20, 30,079.43 and 8,812.11

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Solution

The fourth proportional to 20,062.20, 30,079.43 and 8,812.11 is: 13,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.20 : 30,079.43 = 8,812.11 : x
  2. Step 2: Convert to fraction form
    20,062.20/30,079.43 = 8,812.11/x
  3. Step 3: Cross multiply
    20,062.20x = 30,079.43 × 8,812.11
  4. Step 4: Simplify right side
    20,062.20x = 265,063,201.84
  5. Step 5: Solve for x
    x = 265,063,201.84/20,062.20
  6. Step 6: Final answer
    x = 13,212.07

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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.