Home / 20,363.38-28,101.27-11,411.26

Finding the Fourth Proportional to 20,363.38, 28,101.27 and 11,411.26

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Solution

The fourth proportional to 20,363.38, 28,101.27 and 11,411.26 is: 15,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.38 : 28,101.27 = 11,411.26 : x
  2. Step 2: Convert to fraction form
    20,363.38/28,101.27 = 11,411.26/x
  3. Step 3: Cross multiply
    20,363.38x = 28,101.27 × 11,411.26
  4. Step 4: Simplify right side
    20,363.38x = 320,670,898.30
  5. Step 5: Solve for x
    x = 320,670,898.30/20,363.38
  6. Step 6: Final answer
    x = 15,747.43

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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.