Home / 20,375.46-30,557.10-6,143.34

Finding the Fourth Proportional to 20,375.46, 30,557.10 and 6,143.34

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Solution

The fourth proportional to 20,375.46, 30,557.10 and 6,143.34 is: 9,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.46 : 30,557.10 = 6,143.34 : x
  2. Step 2: Convert to fraction form
    20,375.46/30,557.10 = 6,143.34/x
  3. Step 3: Cross multiply
    20,375.46x = 30,557.10 × 6,143.34
  4. Step 4: Simplify right side
    20,375.46x = 187,722,654.71
  5. Step 5: Solve for x
    x = 187,722,654.71/20,375.46
  6. Step 6: Final answer
    x = 9,213.17

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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.