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Finding the Fourth Proportional to 15,082.25, 20,811.41 and 10,049.72

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Solution

The fourth proportional to 15,082.25, 20,811.41 and 10,049.72 is: 13,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.25 : 20,811.41 = 10,049.72 : x
  2. Step 2: Convert to fraction form
    15,082.25/20,811.41 = 10,049.72/x
  3. Step 3: Cross multiply
    15,082.25x = 20,811.41 × 10,049.72
  4. Step 4: Simplify right side
    15,082.25x = 209,148,689.00
  5. Step 5: Solve for x
    x = 209,148,689.00/15,082.25
  6. Step 6: Final answer
    x = 13,867.21

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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.