Home / 17,170.30-25,742.32-11,890.13

Finding the Fourth Proportional to 17,170.30, 25,742.32 and 11,890.13

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Solution

The fourth proportional to 17,170.30, 25,742.32 and 11,890.13 is: 17,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,170.30 : 25,742.32 = 11,890.13 : x
  2. Step 2: Convert to fraction form
    17,170.30/25,742.32 = 11,890.13/x
  3. Step 3: Cross multiply
    17,170.30x = 25,742.32 × 11,890.13
  4. Step 4: Simplify right side
    17,170.30x = 306,079,565.93
  5. Step 5: Solve for x
    x = 306,079,565.93/17,170.30
  6. Step 6: Final answer
    x = 17,826.11

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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.