Home / 34,142.10-51,213.15-20,951.70

Finding the Fourth Proportional to 34,142.10, 51,213.15 and 20,951.70

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Solution

The fourth proportional to 34,142.10, 51,213.15 and 20,951.70 is: 31,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,142.10 : 51,213.15 = 20,951.70 : x
  2. Step 2: Convert to fraction form
    34,142.10/51,213.15 = 20,951.70/x
  3. Step 3: Cross multiply
    34,142.10x = 51,213.15 × 20,951.70
  4. Step 4: Simplify right side
    34,142.10x = 1,073,002,554.86
  5. Step 5: Solve for x
    x = 1,073,002,554.86/34,142.10
  6. Step 6: Final answer
    x = 31,427.55

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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.