Home / 20,401.34-30,605.09-7,250.58

Finding the Fourth Proportional to 20,401.34, 30,605.09 and 7,250.58

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Solution

The fourth proportional to 20,401.34, 30,605.09 and 7,250.58 is: 10,876.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.34 : 30,605.09 = 7,250.58 : x
  2. Step 2: Convert to fraction form
    20,401.34/30,605.09 = 7,250.58/x
  3. Step 3: Cross multiply
    20,401.34x = 30,605.09 × 7,250.58
  4. Step 4: Simplify right side
    20,401.34x = 221,904,617.20
  5. Step 5: Solve for x
    x = 221,904,617.20/20,401.34
  6. Step 6: Final answer
    x = 10,876.97

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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.