Home / 20,490.06-28,275.33-11,414.94

Finding the Fourth Proportional to 20,490.06, 28,275.33 and 11,414.94

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Solution

The fourth proportional to 20,490.06, 28,275.33 and 11,414.94 is: 15,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,490.06 : 28,275.33 = 11,414.94 : x
  2. Step 2: Convert to fraction form
    20,490.06/28,275.33 = 11,414.94/x
  3. Step 3: Cross multiply
    20,490.06x = 28,275.33 × 11,414.94
  4. Step 4: Simplify right side
    20,490.06x = 322,761,195.43
  5. Step 5: Solve for x
    x = 322,761,195.43/20,490.06
  6. Step 6: Final answer
    x = 15,752.09

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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.