Home / 26,581.31-39,877.52-7,859.89

Finding the Fourth Proportional to 26,581.31, 39,877.52 and 7,859.89

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Solution

The fourth proportional to 26,581.31, 39,877.52 and 7,859.89 is: 11,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,581.31 : 39,877.52 = 7,859.89 : x
  2. Step 2: Convert to fraction form
    26,581.31/39,877.52 = 7,859.89/x
  3. Step 3: Cross multiply
    26,581.31x = 39,877.52 × 7,859.89
  4. Step 4: Simplify right side
    26,581.31x = 313,432,706.91
  5. Step 5: Solve for x
    x = 313,432,706.91/26,581.31
  6. Step 6: Final answer
    x = 11,791.47

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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.