Home / 28,601.18-39,446.24-20,131.34

Finding the Fourth Proportional to 28,601.18, 39,446.24 and 20,131.34

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Solution

The fourth proportional to 28,601.18, 39,446.24 and 20,131.34 is: 27,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.18 : 39,446.24 = 20,131.34 : x
  2. Step 2: Convert to fraction form
    28,601.18/39,446.24 = 20,131.34/x
  3. Step 3: Cross multiply
    28,601.18x = 39,446.24 × 20,131.34
  4. Step 4: Simplify right side
    28,601.18x = 794,105,568.50
  5. Step 5: Solve for x
    x = 794,105,568.50/28,601.18
  6. Step 6: Final answer
    x = 27,764.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.