Home / 40,694.97-61,059.88-20,987.37

Finding the Fourth Proportional to 40,694.97, 61,059.88 and 20,987.37

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Solution

The fourth proportional to 40,694.97, 61,059.88 and 20,987.37 is: 31,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,694.97 : 61,059.88 = 20,987.37 : x
  2. Step 2: Convert to fraction form
    40,694.97/61,059.88 = 20,987.37/x
  3. Step 3: Cross multiply
    40,694.97x = 61,059.88 × 20,987.37
  4. Step 4: Simplify right side
    40,694.97x = 1,281,486,141.07
  5. Step 5: Solve for x
    x = 1,281,486,141.07/40,694.97
  6. Step 6: Final answer
    x = 31,490.04

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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.