Home / 29,697.20-40,988.80-18,517.04

Finding the Fourth Proportional to 29,697.20, 40,988.80 and 18,517.04

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Solution

The fourth proportional to 29,697.20, 40,988.80 and 18,517.04 is: 25,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,697.20 : 40,988.80 = 18,517.04 : x
  2. Step 2: Convert to fraction form
    29,697.20/40,988.80 = 18,517.04/x
  3. Step 3: Cross multiply
    29,697.20x = 40,988.80 × 18,517.04
  4. Step 4: Simplify right side
    29,697.20x = 758,991,249.15
  5. Step 5: Solve for x
    x = 758,991,249.15/29,697.20
  6. Step 6: Final answer
    x = 25,557.67

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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.