Home / 40,947.32-61,407.92-15,981.30

Finding the Fourth Proportional to 40,947.32, 61,407.92 and 15,981.30

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Solution

The fourth proportional to 40,947.32, 61,407.92 and 15,981.30 is: 23,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,947.32 : 61,407.92 = 15,981.30 : x
  2. Step 2: Convert to fraction form
    40,947.32/61,407.92 = 15,981.30/x
  3. Step 3: Cross multiply
    40,947.32x = 61,407.92 × 15,981.30
  4. Step 4: Simplify right side
    40,947.32x = 981,378,431.85
  5. Step 5: Solve for x
    x = 981,378,431.85/40,947.32
  6. Step 6: Final answer
    x = 23,966.85

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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.