Home / 20,517.11-30,753.69-14,655.95

Finding the Fourth Proportional to 20,517.11, 30,753.69 and 14,655.95

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Solution

The fourth proportional to 20,517.11, 30,753.69 and 14,655.95 is: 21,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.11 : 30,753.69 = 14,655.95 : x
  2. Step 2: Convert to fraction form
    20,517.11/30,753.69 = 14,655.95/x
  3. Step 3: Cross multiply
    20,517.11x = 30,753.69 × 14,655.95
  4. Step 4: Simplify right side
    20,517.11x = 450,724,542.96
  5. Step 5: Solve for x
    x = 450,724,542.96/20,517.11
  6. Step 6: Final answer
    x = 21,968.23

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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.