Home / 28,252.78-38,996.40-17,636.02

Finding the Fourth Proportional to 28,252.78, 38,996.40 and 17,636.02

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Solution

The fourth proportional to 28,252.78, 38,996.40 and 17,636.02 is: 24,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.78 : 38,996.40 = 17,636.02 : x
  2. Step 2: Convert to fraction form
    28,252.78/38,996.40 = 17,636.02/x
  3. Step 3: Cross multiply
    28,252.78x = 38,996.40 × 17,636.02
  4. Step 4: Simplify right side
    28,252.78x = 687,741,290.33
  5. Step 5: Solve for x
    x = 687,741,290.33/28,252.78
  6. Step 6: Final answer
    x = 24,342.43

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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.