Home / 20,142.19-30,223.52-9,046.61

Finding the Fourth Proportional to 20,142.19, 30,223.52 and 9,046.61

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Solution

The fourth proportional to 20,142.19, 30,223.52 and 9,046.61 is: 13,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.19 : 30,223.52 = 9,046.61 : x
  2. Step 2: Convert to fraction form
    20,142.19/30,223.52 = 9,046.61/x
  3. Step 3: Cross multiply
    20,142.19x = 30,223.52 × 9,046.61
  4. Step 4: Simplify right side
    20,142.19x = 273,420,353.03
  5. Step 5: Solve for x
    x = 273,420,353.03/20,142.19
  6. Step 6: Final answer
    x = 13,574.51

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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.