Home / 20,589.94-28,414.14-11,158.52

Finding the Fourth Proportional to 20,589.94, 28,414.14 and 11,158.52

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Solution

The fourth proportional to 20,589.94, 28,414.14 and 11,158.52 is: 15,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.94 : 28,414.14 = 11,158.52 : x
  2. Step 2: Convert to fraction form
    20,589.94/28,414.14 = 11,158.52/x
  3. Step 3: Cross multiply
    20,589.94x = 28,414.14 × 11,158.52
  4. Step 4: Simplify right side
    20,589.94x = 317,059,749.47
  5. Step 5: Solve for x
    x = 317,059,749.47/20,589.94
  6. Step 6: Final answer
    x = 15,398.77

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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.