Home / 20,131.60-30,197.40-14,226.70

Finding the Fourth Proportional to 20,131.60, 30,197.40 and 14,226.70

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Solution

The fourth proportional to 20,131.60, 30,197.40 and 14,226.70 is: 21,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.60 : 30,197.40 = 14,226.70 : x
  2. Step 2: Convert to fraction form
    20,131.60/30,197.40 = 14,226.70/x
  3. Step 3: Cross multiply
    20,131.60x = 30,197.40 × 14,226.70
  4. Step 4: Simplify right side
    20,131.60x = 429,609,350.58
  5. Step 5: Solve for x
    x = 429,609,350.58/20,131.60
  6. Step 6: Final answer
    x = 21,340.05

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Double scale
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Similar ratio
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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.