Home / 26,886.80-40,330.20-17,531.30

Finding the Fourth Proportional to 26,886.80, 40,330.20 and 17,531.30

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Solution

The fourth proportional to 26,886.80, 40,330.20 and 17,531.30 is: 26,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,886.80 : 40,330.20 = 17,531.30 : x
  2. Step 2: Convert to fraction form
    26,886.80/40,330.20 = 17,531.30/x
  3. Step 3: Cross multiply
    26,886.80x = 40,330.20 × 17,531.30
  4. Step 4: Simplify right side
    26,886.80x = 707,040,835.26
  5. Step 5: Solve for x
    x = 707,040,835.26/26,886.80
  6. Step 6: Final answer
    x = 26,296.95

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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.