Home / 15,540.58-23,310.56-3,853.78

Finding the Fourth Proportional to 15,540.58, 23,310.56 and 3,853.78

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Solution

The fourth proportional to 15,540.58, 23,310.56 and 3,853.78 is: 5,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.58 : 23,310.56 = 3,853.78 : x
  2. Step 2: Convert to fraction form
    15,540.58/23,310.56 = 3,853.78/x
  3. Step 3: Cross multiply
    15,540.58x = 23,310.56 × 3,853.78
  4. Step 4: Simplify right side
    15,540.58x = 89,833,769.92
  5. Step 5: Solve for x
    x = 89,833,769.92/15,540.58
  6. Step 6: Final answer
    x = 5,780.59

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1.5x scale

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.