Home / 26,418-39,575.16-13,231.44

Finding the Fourth Proportional to 26,418, 39,575.16 and 13,231.44

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Solution

The fourth proportional to 26,418, 39,575.16 and 13,231.44 is: 19,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418 : 39,575.16 = 13,231.44 : x
  2. Step 2: Convert to fraction form
    26,418/39,575.16 = 13,231.44/x
  3. Step 3: Cross multiply
    26,418x = 39,575.16 × 13,231.44
  4. Step 4: Simplify right side
    26,418x = 523,636,355.03
  5. Step 5: Solve for x
    x = 523,636,355.03/26,418
  6. Step 6: Final answer
    x = 19,821.20

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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.