Home / 20,829.92-31,251.15-9,743.04

Finding the Fourth Proportional to 20,829.92, 31,251.15 and 9,743.04

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Solution

The fourth proportional to 20,829.92, 31,251.15 and 9,743.04 is: 14,617.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.92 : 31,251.15 = 9,743.04 : x
  2. Step 2: Convert to fraction form
    20,829.92/31,251.15 = 9,743.04/x
  3. Step 3: Cross multiply
    20,829.92x = 31,251.15 × 9,743.04
  4. Step 4: Simplify right side
    20,829.92x = 304,481,204.50
  5. Step 5: Solve for x
    x = 304,481,204.50/20,829.92
  6. Step 6: Final answer
    x = 14,617.50

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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.