Home / 22,691.69-31,310.04-13,740.02

Finding the Fourth Proportional to 22,691.69, 31,310.04 and 13,740.02

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Solution

The fourth proportional to 22,691.69, 31,310.04 and 13,740.02 is: 18,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.69 : 31,310.04 = 13,740.02 : x
  2. Step 2: Convert to fraction form
    22,691.69/31,310.04 = 13,740.02/x
  3. Step 3: Cross multiply
    22,691.69x = 31,310.04 × 13,740.02
  4. Step 4: Simplify right side
    22,691.69x = 430,200,575.80
  5. Step 5: Solve for x
    x = 430,200,575.80/22,691.69
  6. Step 6: Final answer
    x = 18,958.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.