Home / 21,949.73-32,929.84-7,158.66

Finding the Fourth Proportional to 21,949.73, 32,929.84 and 7,158.66

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Solution

The fourth proportional to 21,949.73, 32,929.84 and 7,158.66 is: 10,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.73 : 32,929.84 = 7,158.66 : x
  2. Step 2: Convert to fraction form
    21,949.73/32,929.84 = 7,158.66/x
  3. Step 3: Cross multiply
    21,949.73x = 32,929.84 × 7,158.66
  4. Step 4: Simplify right side
    21,949.73x = 235,733,492.62
  5. Step 5: Solve for x
    x = 235,733,492.62/21,949.73
  6. Step 6: Final answer
    x = 10,739.70

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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.