Home / 15,232.30-21,020.43-8,517.85

Finding the Fourth Proportional to 15,232.30, 21,020.43 and 8,517.85

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Solution

The fourth proportional to 15,232.30, 21,020.43 and 8,517.85 is: 11,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.30 : 21,020.43 = 8,517.85 : x
  2. Step 2: Convert to fraction form
    15,232.30/21,020.43 = 8,517.85/x
  3. Step 3: Cross multiply
    15,232.30x = 21,020.43 × 8,517.85
  4. Step 4: Simplify right side
    15,232.30x = 179,048,869.68
  5. Step 5: Solve for x
    x = 179,048,869.68/15,232.30
  6. Step 6: Final answer
    x = 11,754.55

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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.