Home / 38,142.88-57,198.96-13,179.04

Finding the Fourth Proportional to 38,142.88, 57,198.96 and 13,179.04

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Solution

The fourth proportional to 38,142.88, 57,198.96 and 13,179.04 is: 19,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.88 : 57,198.96 = 13,179.04 : x
  2. Step 2: Convert to fraction form
    38,142.88/57,198.96 = 13,179.04/x
  3. Step 3: Cross multiply
    38,142.88x = 57,198.96 × 13,179.04
  4. Step 4: Simplify right side
    38,142.88x = 753,827,381.80
  5. Step 5: Solve for x
    x = 753,827,381.80/38,142.88
  6. Step 6: Final answer
    x = 19,763.25

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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.