Home / 25,947.64-38,914.98-8,422.48

Finding the Fourth Proportional to 25,947.64, 38,914.98 and 8,422.48

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Solution

The fourth proportional to 25,947.64, 38,914.98 and 8,422.48 is: 12,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.64 : 38,914.98 = 8,422.48 : x
  2. Step 2: Convert to fraction form
    25,947.64/38,914.98 = 8,422.48/x
  3. Step 3: Cross multiply
    25,947.64x = 38,914.98 × 8,422.48
  4. Step 4: Simplify right side
    25,947.64x = 327,760,640.75
  5. Step 5: Solve for x
    x = 327,760,640.75/25,947.64
  6. Step 6: Final answer
    x = 12,631.62

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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.