Home / 20,203.97-30,306.69-10,331.69

Finding the Fourth Proportional to 20,203.97, 30,306.69 and 10,331.69

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Solution

The fourth proportional to 20,203.97, 30,306.69 and 10,331.69 is: 15,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.97 : 30,306.69 = 10,331.69 : x
  2. Step 2: Convert to fraction form
    20,203.97/30,306.69 = 10,331.69/x
  3. Step 3: Cross multiply
    20,203.97x = 30,306.69 × 10,331.69
  4. Step 4: Simplify right side
    20,203.97x = 313,119,174.47
  5. Step 5: Solve for x
    x = 313,119,174.47/20,203.97
  6. Step 6: Final answer
    x = 15,497.91

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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.