Home / 40,963.65-61,482.09-20,986.75

Finding the Fourth Proportional to 40,963.65, 61,482.09 and 20,986.75

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Solution

The fourth proportional to 40,963.65, 61,482.09 and 20,986.75 is: 31,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,963.65 : 61,482.09 = 20,986.75 : x
  2. Step 2: Convert to fraction form
    40,963.65/61,482.09 = 20,986.75/x
  3. Step 3: Cross multiply
    40,963.65x = 61,482.09 × 20,986.75
  4. Step 4: Simplify right side
    40,963.65x = 1,290,309,252.31
  5. Step 5: Solve for x
    x = 1,290,309,252.31/40,963.65
  6. Step 6: Final answer
    x = 31,498.88

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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.