Home / 40,837.48-61,243.26-13,129

Finding the Fourth Proportional to 40,837.48, 61,243.26 and 13,129

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Solution

The fourth proportional to 40,837.48, 61,243.26 and 13,129 is: 19,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.48 : 61,243.26 = 13,129 : x
  2. Step 2: Convert to fraction form
    40,837.48/61,243.26 = 13,129/x
  3. Step 3: Cross multiply
    40,837.48x = 61,243.26 × 13,129
  4. Step 4: Simplify right side
    40,837.48x = 804,062,760.54
  5. Step 5: Solve for x
    x = 804,062,760.54/40,837.48
  6. Step 6: Final answer
    x = 19,689.33

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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.