Home / 17,942.88-24,758.52-9,985.20

Finding the Fourth Proportional to 17,942.88, 24,758.52 and 9,985.20

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Solution

The fourth proportional to 17,942.88, 24,758.52 and 9,985.20 is: 13,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,942.88 : 24,758.52 = 9,985.20 : x
  2. Step 2: Convert to fraction form
    17,942.88/24,758.52 = 9,985.20/x
  3. Step 3: Cross multiply
    17,942.88x = 24,758.52 × 9,985.20
  4. Step 4: Simplify right side
    17,942.88x = 247,218,773.90
  5. Step 5: Solve for x
    x = 247,218,773.90/17,942.88
  6. Step 6: Final answer
    x = 13,778.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.