Home / 20,713.60-28,584.76-11,282.17

Finding the Fourth Proportional to 20,713.60, 28,584.76 and 11,282.17

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Solution

The fourth proportional to 20,713.60, 28,584.76 and 11,282.17 is: 15,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.60 : 28,584.76 = 11,282.17 : x
  2. Step 2: Convert to fraction form
    20,713.60/28,584.76 = 11,282.17/x
  3. Step 3: Cross multiply
    20,713.60x = 28,584.76 × 11,282.17
  4. Step 4: Simplify right side
    20,713.60x = 322,497,922.39
  5. Step 5: Solve for x
    x = 322,497,922.39/20,713.60
  6. Step 6: Final answer
    x = 15,569.38

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Similar ratio
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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.