Home / 29,887.31-41,227.26-18,689.87

Finding the Fourth Proportional to 29,887.31, 41,227.26 and 18,689.87

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Solution

The fourth proportional to 29,887.31, 41,227.26 and 18,689.87 is: 25,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,887.31 : 41,227.26 = 18,689.87 : x
  2. Step 2: Convert to fraction form
    29,887.31/41,227.26 = 18,689.87/x
  3. Step 3: Cross multiply
    29,887.31x = 41,227.26 × 18,689.87
  4. Step 4: Simplify right side
    29,887.31x = 770,532,129.86
  5. Step 5: Solve for x
    x = 770,532,129.86/29,887.31
  6. Step 6: Final answer
    x = 25,781.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.