Home / 42,369.38-63,512.73-20,176.78

Finding the Fourth Proportional to 42,369.38, 63,512.73 and 20,176.78

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Solution

The fourth proportional to 42,369.38, 63,512.73 and 20,176.78 is: 30,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.38 : 63,512.73 = 20,176.78 : x
  2. Step 2: Convert to fraction form
    42,369.38/63,512.73 = 20,176.78/x
  3. Step 3: Cross multiply
    42,369.38x = 63,512.73 × 20,176.78
  4. Step 4: Simplify right side
    42,369.38x = 1,281,482,380.41
  5. Step 5: Solve for x
    x = 1,281,482,380.41/42,369.38
  6. Step 6: Final answer
    x = 30,245.48

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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.