Home / 40,986-61,437.45-19,908.28

Finding the Fourth Proportional to 40,986, 61,437.45 and 19,908.28

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Solution

The fourth proportional to 40,986, 61,437.45 and 19,908.28 is: 29,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986 : 61,437.45 = 19,908.28 : x
  2. Step 2: Convert to fraction form
    40,986/61,437.45 = 19,908.28/x
  3. Step 3: Cross multiply
    40,986x = 61,437.45 × 19,908.28
  4. Step 4: Simplify right side
    40,986x = 1,223,114,108.54
  5. Step 5: Solve for x
    x = 1,223,114,108.54/40,986
  6. Step 6: Final answer
    x = 29,842.24

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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.