Home / 42,170.96-63,254.28-12,589.04

Finding the Fourth Proportional to 42,170.96, 63,254.28 and 12,589.04

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Solution

The fourth proportional to 42,170.96, 63,254.28 and 12,589.04 is: 18,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170.96 : 63,254.28 = 12,589.04 : x
  2. Step 2: Convert to fraction form
    42,170.96/63,254.28 = 12,589.04/x
  3. Step 3: Cross multiply
    42,170.96x = 63,254.28 × 12,589.04
  4. Step 4: Simplify right side
    42,170.96x = 796,310,661.09
  5. Step 5: Solve for x
    x = 796,310,661.09/42,170.96
  6. Step 6: Final answer
    x = 18,882.92

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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.