Home / 20,744.31-28,626.01-11,790.57

Finding the Fourth Proportional to 20,744.31, 28,626.01 and 11,790.57

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Solution

The fourth proportional to 20,744.31, 28,626.01 and 11,790.57 is: 16,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.31 : 28,626.01 = 11,790.57 : x
  2. Step 2: Convert to fraction form
    20,744.31/28,626.01 = 11,790.57/x
  3. Step 3: Cross multiply
    20,744.31x = 28,626.01 × 11,790.57
  4. Step 4: Simplify right side
    20,744.31x = 337,516,974.73
  5. Step 5: Solve for x
    x = 337,516,974.73/20,744.31
  6. Step 6: Final answer
    x = 16,270.34

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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.