Home / 20,348.51-30,517.99-5,553.91

Finding the Fourth Proportional to 20,348.51, 30,517.99 and 5,553.91

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Solution

The fourth proportional to 20,348.51, 30,517.99 and 5,553.91 is: 8,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.51 : 30,517.99 = 5,553.91 : x
  2. Step 2: Convert to fraction form
    20,348.51/30,517.99 = 5,553.91/x
  3. Step 3: Cross multiply
    20,348.51x = 30,517.99 × 5,553.91
  4. Step 4: Simplify right side
    20,348.51x = 169,493,989.48
  5. Step 5: Solve for x
    x = 169,493,989.48/20,348.51
  6. Step 6: Final answer
    x = 8,329.55

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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.