Home / 40,849.61-61,243.31-21,115.58

Finding the Fourth Proportional to 40,849.61, 61,243.31 and 21,115.58

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Solution

The fourth proportional to 40,849.61, 61,243.31 and 21,115.58 is: 31,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,849.61 : 61,243.31 = 21,115.58 : x
  2. Step 2: Convert to fraction form
    40,849.61/61,243.31 = 21,115.58/x
  3. Step 3: Cross multiply
    40,849.61x = 61,243.31 × 21,115.58
  4. Step 4: Simplify right side
    40,849.61x = 1,293,187,599.98
  5. Step 5: Solve for x
    x = 1,293,187,599.98/40,849.61
  6. Step 6: Final answer
    x = 31,657.29

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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.