Home / 20,363.68-28,103.04-11,414.07

Finding the Fourth Proportional to 20,363.68, 28,103.04 and 11,414.07

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Solution

The fourth proportional to 20,363.68, 28,103.04 and 11,414.07 is: 15,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.68 : 28,103.04 = 11,414.07 : x
  2. Step 2: Convert to fraction form
    20,363.68/28,103.04 = 11,414.07/x
  3. Step 3: Cross multiply
    20,363.68x = 28,103.04 × 11,414.07
  4. Step 4: Simplify right side
    20,363.68x = 320,770,065.77
  5. Step 5: Solve for x
    x = 320,770,065.77/20,363.68
  6. Step 6: Final answer
    x = 15,752.07

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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.