Home / 20,423.47-30,576.78-13,837.97

Finding the Fourth Proportional to 20,423.47, 30,576.78 and 13,837.97

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Solution

The fourth proportional to 20,423.47, 30,576.78 and 13,837.97 is: 20,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.47 : 30,576.78 = 13,837.97 : x
  2. Step 2: Convert to fraction form
    20,423.47/30,576.78 = 13,837.97/x
  3. Step 3: Cross multiply
    20,423.47x = 30,576.78 × 13,837.97
  4. Step 4: Simplify right side
    20,423.47x = 423,120,564.34
  5. Step 5: Solve for x
    x = 423,120,564.34/20,423.47
  6. Step 6: Final answer
    x = 20,717.37

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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.