Home / 14,986.20-22,479.30-14,179.80

Finding the Fourth Proportional to 14,986.20, 22,479.30 and 14,179.80

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Solution

The fourth proportional to 14,986.20, 22,479.30 and 14,179.80 is: 21,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.20 : 22,479.30 = 14,179.80 : x
  2. Step 2: Convert to fraction form
    14,986.20/22,479.30 = 14,179.80/x
  3. Step 3: Cross multiply
    14,986.20x = 22,479.30 × 14,179.80
  4. Step 4: Simplify right side
    14,986.20x = 318,751,978.14
  5. Step 5: Solve for x
    x = 318,751,978.14/14,986.20
  6. Step 6: Final answer
    x = 21,269.70

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1.5x scale

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.