Home / 20,086.60-30,101.10-14,780.20

Finding the Fourth Proportional to 20,086.60, 30,101.10 and 14,780.20

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Solution

The fourth proportional to 20,086.60, 30,101.10 and 14,780.20 is: 22,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.60 : 30,101.10 = 14,780.20 : x
  2. Step 2: Convert to fraction form
    20,086.60/30,101.10 = 14,780.20/x
  3. Step 3: Cross multiply
    20,086.60x = 30,101.10 × 14,780.20
  4. Step 4: Simplify right side
    20,086.60x = 444,900,278.22
  5. Step 5: Solve for x
    x = 444,900,278.22/20,086.60
  6. Step 6: Final answer
    x = 22,149.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.