Home / 20,949.49-31,417.21-11,082.97

Finding the Fourth Proportional to 20,949.49, 31,417.21 and 11,082.97

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Solution

The fourth proportional to 20,949.49, 31,417.21 and 11,082.97 is: 16,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.49 : 31,417.21 = 11,082.97 : x
  2. Step 2: Convert to fraction form
    20,949.49/31,417.21 = 11,082.97/x
  3. Step 3: Cross multiply
    20,949.49x = 31,417.21 × 11,082.97
  4. Step 4: Simplify right side
    20,949.49x = 348,195,995.91
  5. Step 5: Solve for x
    x = 348,195,995.91/20,949.49
  6. Step 6: Final answer
    x = 16,620.74

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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.