Home / 42,329.56-63,475.11-20,169.72

Finding the Fourth Proportional to 42,329.56, 63,475.11 and 20,169.72

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Solution

The fourth proportional to 42,329.56, 63,475.11 and 20,169.72 is: 30,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,329.56 : 63,475.11 = 20,169.72 : x
  2. Step 2: Convert to fraction form
    42,329.56/63,475.11 = 20,169.72/x
  3. Step 3: Cross multiply
    42,329.56x = 63,475.11 × 20,169.72
  4. Step 4: Simplify right side
    42,329.56x = 1,280,275,195.67
  5. Step 5: Solve for x
    x = 1,280,275,195.67/42,329.56
  6. Step 6: Final answer
    x = 30,245.42

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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.