Home / 20,146.61-30,209.49-9,043.74

Finding the Fourth Proportional to 20,146.61, 30,209.49 and 9,043.74

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Solution

The fourth proportional to 20,146.61, 30,209.49 and 9,043.74 is: 13,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.61 : 30,209.49 = 9,043.74 : x
  2. Step 2: Convert to fraction form
    20,146.61/30,209.49 = 9,043.74/x
  3. Step 3: Cross multiply
    20,146.61x = 30,209.49 × 9,043.74
  4. Step 4: Simplify right side
    20,146.61x = 273,206,773.09
  5. Step 5: Solve for x
    x = 273,206,773.09/20,146.61
  6. Step 6: Final answer
    x = 13,560.93

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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.