Home / 20,042.47-30,034.95-11,258.90

Finding the Fourth Proportional to 20,042.47, 30,034.95 and 11,258.90

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Solution

The fourth proportional to 20,042.47, 30,034.95 and 11,258.90 is: 16,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.47 : 30,034.95 = 11,258.90 : x
  2. Step 2: Convert to fraction form
    20,042.47/30,034.95 = 11,258.90/x
  3. Step 3: Cross multiply
    20,042.47x = 30,034.95 × 11,258.90
  4. Step 4: Simplify right side
    20,042.47x = 338,160,498.56
  5. Step 5: Solve for x
    x = 338,160,498.56/20,042.47
  6. Step 6: Final answer
    x = 16,872.20

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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.