Home / 14,986.20-22,479.30-3,892.80

Finding the Fourth Proportional to 14,986.20, 22,479.30 and 3,892.80

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Solution

The fourth proportional to 14,986.20, 22,479.30 and 3,892.80 is: 5,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.20 : 22,479.30 = 3,892.80 : x
  2. Step 2: Convert to fraction form
    14,986.20/22,479.30 = 3,892.80/x
  3. Step 3: Cross multiply
    14,986.20x = 22,479.30 × 3,892.80
  4. Step 4: Simplify right side
    14,986.20x = 87,507,419.04
  5. Step 5: Solve for x
    x = 87,507,419.04/14,986.20
  6. Step 6: Final answer
    x = 5,839.20

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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.