Home / 42,163.70-63,245.55-15,874.34

Finding the Fourth Proportional to 42,163.70, 63,245.55 and 15,874.34

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Solution

The fourth proportional to 42,163.70, 63,245.55 and 15,874.34 is: 23,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,163.70 : 63,245.55 = 15,874.34 : x
  2. Step 2: Convert to fraction form
    42,163.70/63,245.55 = 15,874.34/x
  3. Step 3: Cross multiply
    42,163.70x = 63,245.55 × 15,874.34
  4. Step 4: Simplify right side
    42,163.70x = 1,003,981,364.19
  5. Step 5: Solve for x
    x = 1,003,981,364.19/42,163.70
  6. Step 6: Final answer
    x = 23,811.51

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Similar ratio
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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.