Home / 20,158.73-27,819.20-11,084.25

Finding the Fourth Proportional to 20,158.73, 27,819.20 and 11,084.25

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Solution

The fourth proportional to 20,158.73, 27,819.20 and 11,084.25 is: 15,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.73 : 27,819.20 = 11,084.25 : x
  2. Step 2: Convert to fraction form
    20,158.73/27,819.20 = 11,084.25/x
  3. Step 3: Cross multiply
    20,158.73x = 27,819.20 × 11,084.25
  4. Step 4: Simplify right side
    20,158.73x = 308,354,967.60
  5. Step 5: Solve for x
    x = 308,354,967.60/20,158.73
  6. Step 6: Final answer
    x = 15,296.35

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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.