Home / 21,721.76-32,548.62-17,338.04

Finding the Fourth Proportional to 21,721.76, 32,548.62 and 17,338.04

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Solution

The fourth proportional to 21,721.76, 32,548.62 and 17,338.04 is: 25,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.76 : 32,548.62 = 17,338.04 : x
  2. Step 2: Convert to fraction form
    21,721.76/32,548.62 = 17,338.04/x
  3. Step 3: Cross multiply
    21,721.76x = 32,548.62 × 17,338.04
  4. Step 4: Simplify right side
    21,721.76x = 564,329,275.50
  5. Step 5: Solve for x
    x = 564,329,275.50/21,721.76
  6. Step 6: Final answer
    x = 25,979.91

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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.