Home / 13,630.20-20,445.24-3,769.38

Finding the Fourth Proportional to 13,630.20, 20,445.24 and 3,769.38

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Solution

The fourth proportional to 13,630.20, 20,445.24 and 3,769.38 is: 5,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.20 : 20,445.24 = 3,769.38 : x
  2. Step 2: Convert to fraction form
    13,630.20/20,445.24 = 3,769.38/x
  3. Step 3: Cross multiply
    13,630.20x = 20,445.24 × 3,769.38
  4. Step 4: Simplify right side
    13,630.20x = 77,065,878.75
  5. Step 5: Solve for x
    x = 77,065,878.75/13,630.20
  6. Step 6: Final answer
    x = 5,654.05

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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.