Home / 26,100.71-39,138.30-18,207.00

Finding the Fourth Proportional to 26,100.71, 39,138.30 and 18,207.00

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Solution

The fourth proportional to 26,100.71, 39,138.30 and 18,207.00 is: 27,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,100.71 : 39,138.30 = 18,207.00 : x
  2. Step 2: Convert to fraction form
    26,100.71/39,138.30 = 18,207.00/x
  3. Step 3: Cross multiply
    26,100.71x = 39,138.30 × 18,207.00
  4. Step 4: Simplify right side
    26,100.71x = 712,591,174.87
  5. Step 5: Solve for x
    x = 712,591,174.87/26,100.71
  6. Step 6: Final answer
    x = 27,301.61

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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.