Home / 40,947.20-61,422.08-15,986.24

Finding the Fourth Proportional to 40,947.20, 61,422.08 and 15,986.24

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Solution

The fourth proportional to 40,947.20, 61,422.08 and 15,986.24 is: 23,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,947.20 : 61,422.08 = 15,986.24 : x
  2. Step 2: Convert to fraction form
    40,947.20/61,422.08 = 15,986.24/x
  3. Step 3: Cross multiply
    40,947.20x = 61,422.08 × 15,986.24
  4. Step 4: Simplify right side
    40,947.20x = 981,908,112.18
  5. Step 5: Solve for x
    x = 981,908,112.18/40,947.20
  6. Step 6: Final answer
    x = 23,979.86

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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.