Home / 20,132.60-30,170.10-14,826.20

Finding the Fourth Proportional to 20,132.60, 30,170.10 and 14,826.20

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Solution

The fourth proportional to 20,132.60, 30,170.10 and 14,826.20 is: 22,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.60 : 30,170.10 = 14,826.20 : x
  2. Step 2: Convert to fraction form
    20,132.60/30,170.10 = 14,826.20/x
  3. Step 3: Cross multiply
    20,132.60x = 30,170.10 × 14,826.20
  4. Step 4: Simplify right side
    20,132.60x = 447,307,936.62
  5. Step 5: Solve for x
    x = 447,307,936.62/20,132.60
  6. Step 6: Final answer
    x = 22,218.09

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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.