Home / 26,911.71-40,290.75-21,372.93

Finding the Fourth Proportional to 26,911.71, 40,290.75 and 21,372.93

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Solution

The fourth proportional to 26,911.71, 40,290.75 and 21,372.93 is: 31,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.71 : 40,290.75 = 21,372.93 : x
  2. Step 2: Convert to fraction form
    26,911.71/40,290.75 = 21,372.93/x
  3. Step 3: Cross multiply
    26,911.71x = 40,290.75 × 21,372.93
  4. Step 4: Simplify right side
    26,911.71x = 861,131,379.40
  5. Step 5: Solve for x
    x = 861,131,379.40/26,911.71
  6. Step 6: Final answer
    x = 31,998.39

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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.