Home / 26,411.78-39,624.57-7,691.41

Finding the Fourth Proportional to 26,411.78, 39,624.57 and 7,691.41

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Solution

The fourth proportional to 26,411.78, 39,624.57 and 7,691.41 is: 11,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,411.78 : 39,624.57 = 7,691.41 : x
  2. Step 2: Convert to fraction form
    26,411.78/39,624.57 = 7,691.41/x
  3. Step 3: Cross multiply
    26,411.78x = 39,624.57 × 7,691.41
  4. Step 4: Simplify right side
    26,411.78x = 304,768,618.95
  5. Step 5: Solve for x
    x = 304,768,618.95/26,411.78
  6. Step 6: Final answer
    x = 11,539.12

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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.