Home / 20,446.14-30,672.77-7,972.95

Finding the Fourth Proportional to 20,446.14, 30,672.77 and 7,972.95

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Solution

The fourth proportional to 20,446.14, 30,672.77 and 7,972.95 is: 11,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.14 : 30,672.77 = 7,972.95 : x
  2. Step 2: Convert to fraction form
    20,446.14/30,672.77 = 7,972.95/x
  3. Step 3: Cross multiply
    20,446.14x = 30,672.77 × 7,972.95
  4. Step 4: Simplify right side
    20,446.14x = 244,552,421.71
  5. Step 5: Solve for x
    x = 244,552,421.71/20,446.14
  6. Step 6: Final answer
    x = 11,960.81

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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.