Home / 20,113.52-30,180.33-9,028.13

Finding the Fourth Proportional to 20,113.52, 30,180.33 and 9,028.13

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Solution

The fourth proportional to 20,113.52, 30,180.33 and 9,028.13 is: 13,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.52 : 30,180.33 = 9,028.13 : x
  2. Step 2: Convert to fraction form
    20,113.52/30,180.33 = 9,028.13/x
  3. Step 3: Cross multiply
    20,113.52x = 30,180.33 × 9,028.13
  4. Step 4: Simplify right side
    20,113.52x = 272,471,791.78
  5. Step 5: Solve for x
    x = 272,471,791.78/20,113.52
  6. Step 6: Final answer
    x = 13,546.70

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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.