Home / 40,836.44-61,215.78-13,115

Finding the Fourth Proportional to 40,836.44, 61,215.78 and 13,115

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Solution

The fourth proportional to 40,836.44, 61,215.78 and 13,115 is: 19,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,836.44 : 61,215.78 = 13,115 : x
  2. Step 2: Convert to fraction form
    40,836.44/61,215.78 = 13,115/x
  3. Step 3: Cross multiply
    40,836.44x = 61,215.78 × 13,115
  4. Step 4: Simplify right side
    40,836.44x = 802,844,954.70
  5. Step 5: Solve for x
    x = 802,844,954.70/40,836.44
  6. Step 6: Final answer
    x = 19,660.01

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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.