Home / 14,180.40-21,272.85-4,821.30

Finding the Fourth Proportional to 14,180.40, 21,272.85 and 4,821.30

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Solution

The fourth proportional to 14,180.40, 21,272.85 and 4,821.30 is: 7,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.40 : 21,272.85 = 4,821.30 : x
  2. Step 2: Convert to fraction form
    14,180.40/21,272.85 = 4,821.30/x
  3. Step 3: Cross multiply
    14,180.40x = 21,272.85 × 4,821.30
  4. Step 4: Simplify right side
    14,180.40x = 102,562,791.71
  5. Step 5: Solve for x
    x = 102,562,791.71/14,180.40
  6. Step 6: Final answer
    x = 7,232.71

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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.