Home / 20,208.13-30,298.11-8,957.38

Finding the Fourth Proportional to 20,208.13, 30,298.11 and 8,957.38

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Solution

The fourth proportional to 20,208.13, 30,298.11 and 8,957.38 is: 13,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.13 : 30,298.11 = 8,957.38 : x
  2. Step 2: Convert to fraction form
    20,208.13/30,298.11 = 8,957.38/x
  3. Step 3: Cross multiply
    20,208.13x = 30,298.11 × 8,957.38
  4. Step 4: Simplify right side
    20,208.13x = 271,391,684.55
  5. Step 5: Solve for x
    x = 271,391,684.55/20,208.13
  6. Step 6: Final answer
    x = 13,429.83

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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.