Home / 20,386.88-30,540.49-14,046.81

Finding the Fourth Proportional to 20,386.88, 30,540.49 and 14,046.81

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Solution

The fourth proportional to 20,386.88, 30,540.49 and 14,046.81 is: 21,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.88 : 30,540.49 = 14,046.81 : x
  2. Step 2: Convert to fraction form
    20,386.88/30,540.49 = 14,046.81/x
  3. Step 3: Cross multiply
    20,386.88x = 30,540.49 × 14,046.81
  4. Step 4: Simplify right side
    20,386.88x = 428,996,310.69
  5. Step 5: Solve for x
    x = 428,996,310.69/20,386.88
  6. Step 6: Final answer
    x = 21,042.77

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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.