Home / 20,902.77-28,844.33-11,950.65

Finding the Fourth Proportional to 20,902.77, 28,844.33 and 11,950.65

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Solution

The fourth proportional to 20,902.77, 28,844.33 and 11,950.65 is: 16,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902.77 : 28,844.33 = 11,950.65 : x
  2. Step 2: Convert to fraction form
    20,902.77/28,844.33 = 11,950.65/x
  3. Step 3: Cross multiply
    20,902.77x = 28,844.33 × 11,950.65
  4. Step 4: Simplify right side
    20,902.77x = 344,708,432.56
  5. Step 5: Solve for x
    x = 344,708,432.56/20,902.77
  6. Step 6: Final answer
    x = 16,491.04

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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.