Home / 14,680.40-22,020.60-4,821.20

Finding the Fourth Proportional to 14,680.40, 22,020.60 and 4,821.20

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Solution

The fourth proportional to 14,680.40, 22,020.60 and 4,821.20 is: 7,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680.40 : 22,020.60 = 4,821.20 : x
  2. Step 2: Convert to fraction form
    14,680.40/22,020.60 = 4,821.20/x
  3. Step 3: Cross multiply
    14,680.40x = 22,020.60 × 4,821.20
  4. Step 4: Simplify right side
    14,680.40x = 106,165,716.72
  5. Step 5: Solve for x
    x = 106,165,716.72/14,680.40
  6. Step 6: Final answer
    x = 7,231.80

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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.