Home / 27,168.29-40,761.31-13,129.93

Finding the Fourth Proportional to 27,168.29, 40,761.31 and 13,129.93

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Solution

The fourth proportional to 27,168.29, 40,761.31 and 13,129.93 is: 19,699.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.29 : 40,761.31 = 13,129.93 : x
  2. Step 2: Convert to fraction form
    27,168.29/40,761.31 = 13,129.93/x
  3. Step 3: Cross multiply
    27,168.29x = 40,761.31 × 13,129.93
  4. Step 4: Simplify right side
    27,168.29x = 535,193,147.01
  5. Step 5: Solve for x
    x = 535,193,147.01/27,168.29
  6. Step 6: Final answer
    x = 19,699.18

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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.