Home / 29,551.41-40,778.03-20,618.12

Finding the Fourth Proportional to 29,551.41, 40,778.03 and 20,618.12

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Solution

The fourth proportional to 29,551.41, 40,778.03 and 20,618.12 is: 28,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,551.41 : 40,778.03 = 20,618.12 : x
  2. Step 2: Convert to fraction form
    29,551.41/40,778.03 = 20,618.12/x
  3. Step 3: Cross multiply
    29,551.41x = 40,778.03 × 20,618.12
  4. Step 4: Simplify right side
    29,551.41x = 840,766,008.92
  5. Step 5: Solve for x
    x = 840,766,008.92/29,551.41
  6. Step 6: Final answer
    x = 28,450.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.