Home / 20,744.46-31,097.01-8,272.17

Finding the Fourth Proportional to 20,744.46, 31,097.01 and 8,272.17

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Solution

The fourth proportional to 20,744.46, 31,097.01 and 8,272.17 is: 12,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.46 : 31,097.01 = 8,272.17 : x
  2. Step 2: Convert to fraction form
    20,744.46/31,097.01 = 8,272.17/x
  3. Step 3: Cross multiply
    20,744.46x = 31,097.01 × 8,272.17
  4. Step 4: Simplify right side
    20,744.46x = 257,239,753.21
  5. Step 5: Solve for x
    x = 257,239,753.21/20,744.46
  6. Step 6: Final answer
    x = 12,400.41

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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.