Home / 20,982.68-31,463.76-7,469.34

Finding the Fourth Proportional to 20,982.68, 31,463.76 and 7,469.34

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Solution

The fourth proportional to 20,982.68, 31,463.76 and 7,469.34 is: 11,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.68 : 31,463.76 = 7,469.34 : x
  2. Step 2: Convert to fraction form
    20,982.68/31,463.76 = 7,469.34/x
  3. Step 3: Cross multiply
    20,982.68x = 31,463.76 × 7,469.34
  4. Step 4: Simplify right side
    20,982.68x = 235,013,521.12
  5. Step 5: Solve for x
    x = 235,013,521.12/20,982.68
  6. Step 6: Final answer
    x = 11,200.36

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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.