Home / 23,391.20-32,278.48-12,778.72

Finding the Fourth Proportional to 23,391.20, 32,278.48 and 12,778.72

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Solution

The fourth proportional to 23,391.20, 32,278.48 and 12,778.72 is: 17,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.20 : 32,278.48 = 12,778.72 : x
  2. Step 2: Convert to fraction form
    23,391.20/32,278.48 = 12,778.72/x
  3. Step 3: Cross multiply
    23,391.20x = 32,278.48 × 12,778.72
  4. Step 4: Simplify right side
    23,391.20x = 412,477,657.95
  5. Step 5: Solve for x
    x = 412,477,657.95/23,391.20
  6. Step 6: Final answer
    x = 17,633.88

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