Home / 20,674.11-31,011.17-5,091.73

Finding the Fourth Proportional to 20,674.11, 31,011.17 and 5,091.73

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Solution

The fourth proportional to 20,674.11, 31,011.17 and 5,091.73 is: 7,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.11 : 31,011.17 = 5,091.73 : x
  2. Step 2: Convert to fraction form
    20,674.11/31,011.17 = 5,091.73/x
  3. Step 3: Cross multiply
    20,674.11x = 31,011.17 × 5,091.73
  4. Step 4: Simplify right side
    20,674.11x = 157,900,504.62
  5. Step 5: Solve for x
    x = 157,900,504.62/20,674.11
  6. Step 6: Final answer
    x = 7,637.60

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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.