Home / 40,732.89-61,132.35-21,017.09

Finding the Fourth Proportional to 40,732.89, 61,132.35 and 21,017.09

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Solution

The fourth proportional to 40,732.89, 61,132.35 and 21,017.09 is: 31,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,732.89 : 61,132.35 = 21,017.09 : x
  2. Step 2: Convert to fraction form
    40,732.89/61,132.35 = 21,017.09/x
  3. Step 3: Cross multiply
    40,732.89x = 61,132.35 × 21,017.09
  4. Step 4: Simplify right side
    40,732.89x = 1,284,823,796.20
  5. Step 5: Solve for x
    x = 1,284,823,796.20/40,732.89
  6. Step 6: Final answer
    x = 31,542.66

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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.