Home / 15,420.82-23,131.15-3,734.04

Finding the Fourth Proportional to 15,420.82, 23,131.15 and 3,734.04

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Solution

The fourth proportional to 15,420.82, 23,131.15 and 3,734.04 is: 5,601.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.82 : 23,131.15 = 3,734.04 : x
  2. Step 2: Convert to fraction form
    15,420.82/23,131.15 = 3,734.04/x
  3. Step 3: Cross multiply
    15,420.82x = 23,131.15 × 3,734.04
  4. Step 4: Simplify right side
    15,420.82x = 86,372,639.35
  5. Step 5: Solve for x
    x = 86,372,639.35/15,420.82
  6. Step 6: Final answer
    x = 5,601.04

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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.