Home / 22,091.12-30,505.20-15,034.40

Finding the Fourth Proportional to 22,091.12, 30,505.20 and 15,034.40

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Solution

The fourth proportional to 22,091.12, 30,505.20 and 15,034.40 is: 20,760.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,091.12 : 30,505.20 = 15,034.40 : x
  2. Step 2: Convert to fraction form
    22,091.12/30,505.20 = 15,034.40/x
  3. Step 3: Cross multiply
    22,091.12x = 30,505.20 × 15,034.40
  4. Step 4: Simplify right side
    22,091.12x = 458,627,378.88
  5. Step 5: Solve for x
    x = 458,627,378.88/22,091.12
  6. Step 6: Final answer
    x = 20,760.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.