Home / 26,531.76-39,788.40-8,758.62

Finding the Fourth Proportional to 26,531.76, 39,788.40 and 8,758.62

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Solution

The fourth proportional to 26,531.76, 39,788.40 and 8,758.62 is: 13,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.76 : 39,788.40 = 8,758.62 : x
  2. Step 2: Convert to fraction form
    26,531.76/39,788.40 = 8,758.62/x
  3. Step 3: Cross multiply
    26,531.76x = 39,788.40 × 8,758.62
  4. Step 4: Simplify right side
    26,531.76x = 348,491,476.01
  5. Step 5: Solve for x
    x = 348,491,476.01/26,531.76
  6. Step 6: Final answer
    x = 13,134.88

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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.