Home / 47,974.28-71,961.35-12,913.97

Finding the Fourth Proportional to 47,974.28, 71,961.35 and 12,913.97

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Solution

The fourth proportional to 47,974.28, 71,961.35 and 12,913.97 is: 19,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,974.28 : 71,961.35 = 12,913.97 : x
  2. Step 2: Convert to fraction form
    47,974.28/71,961.35 = 12,913.97/x
  3. Step 3: Cross multiply
    47,974.28x = 71,961.35 × 12,913.97
  4. Step 4: Simplify right side
    47,974.28x = 929,306,290.68
  5. Step 5: Solve for x
    x = 929,306,290.68/47,974.28
  6. Step 6: Final answer
    x = 19,370.93

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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.