Home / 26,948.91-40,369.78-21,078.03

Finding the Fourth Proportional to 26,948.91, 40,369.78 and 21,078.03

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Solution

The fourth proportional to 26,948.91, 40,369.78 and 21,078.03 is: 31,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,948.91 : 40,369.78 = 21,078.03 : x
  2. Step 2: Convert to fraction form
    26,948.91/40,369.78 = 21,078.03/x
  3. Step 3: Cross multiply
    26,948.91x = 40,369.78 × 21,078.03
  4. Step 4: Simplify right side
    26,948.91x = 850,915,433.93
  5. Step 5: Solve for x
    x = 850,915,433.93/26,948.91
  6. Step 6: Final answer
    x = 31,575.13

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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.