Home / 26,515.82-39,765.30-8,981.54

Finding the Fourth Proportional to 26,515.82, 39,765.30 and 8,981.54

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Solution

The fourth proportional to 26,515.82, 39,765.30 and 8,981.54 is: 13,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,515.82 : 39,765.30 = 8,981.54 : x
  2. Step 2: Convert to fraction form
    26,515.82/39,765.30 = 8,981.54/x
  3. Step 3: Cross multiply
    26,515.82x = 39,765.30 × 8,981.54
  4. Step 4: Simplify right side
    26,515.82x = 357,153,433.74
  5. Step 5: Solve for x
    x = 357,153,433.74/26,515.82
  6. Step 6: Final answer
    x = 13,469.45

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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.