Home / 26,876-40,309.68-19,061.12

Finding the Fourth Proportional to 26,876, 40,309.68 and 19,061.12

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Solution

The fourth proportional to 26,876, 40,309.68 and 19,061.12 is: 28,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,876 : 40,309.68 = 19,061.12 : x
  2. Step 2: Convert to fraction form
    26,876/40,309.68 = 19,061.12/x
  3. Step 3: Cross multiply
    26,876x = 40,309.68 × 19,061.12
  4. Step 4: Simplify right side
    26,876x = 768,347,647.64
  5. Step 5: Solve for x
    x = 768,347,647.64/26,876
  6. Step 6: Final answer
    x = 28,588.62

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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.