Home / 25,729.48-38,569.56-8,187.88

Finding the Fourth Proportional to 25,729.48, 38,569.56 and 8,187.88

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Solution

The fourth proportional to 25,729.48, 38,569.56 and 8,187.88 is: 12,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.48 : 38,569.56 = 8,187.88 : x
  2. Step 2: Convert to fraction form
    25,729.48/38,569.56 = 8,187.88/x
  3. Step 3: Cross multiply
    25,729.48x = 38,569.56 × 8,187.88
  4. Step 4: Simplify right side
    25,729.48x = 315,802,928.93
  5. Step 5: Solve for x
    x = 315,802,928.93/25,729.48
  6. Step 6: Final answer
    x = 12,273.97

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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.