Home / 20,882.24-28,817.90-11,450.82

Finding the Fourth Proportional to 20,882.24, 28,817.90 and 11,450.82

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Solution

The fourth proportional to 20,882.24, 28,817.90 and 11,450.82 is: 15,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.24 : 28,817.90 = 11,450.82 : x
  2. Step 2: Convert to fraction form
    20,882.24/28,817.90 = 11,450.82/x
  3. Step 3: Cross multiply
    20,882.24x = 28,817.90 × 11,450.82
  4. Step 4: Simplify right side
    20,882.24x = 329,988,585.68
  5. Step 5: Solve for x
    x = 329,988,585.68/20,882.24
  6. Step 6: Final answer
    x = 15,802.36

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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.