Home / 20,713.80-31,042.98-7,553.76

Finding the Fourth Proportional to 20,713.80, 31,042.98 and 7,553.76

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Solution

The fourth proportional to 20,713.80, 31,042.98 and 7,553.76 is: 11,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.80 : 31,042.98 = 7,553.76 : x
  2. Step 2: Convert to fraction form
    20,713.80/31,042.98 = 7,553.76/x
  3. Step 3: Cross multiply
    20,713.80x = 31,042.98 × 7,553.76
  4. Step 4: Simplify right side
    20,713.80x = 234,491,220.60
  5. Step 5: Solve for x
    x = 234,491,220.60/20,713.80
  6. Step 6: Final answer
    x = 11,320.53

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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.