Home / 17,721.05-26,581.60-16,638.48

Finding the Fourth Proportional to 17,721.05, 26,581.60 and 16,638.48

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Solution

The fourth proportional to 17,721.05, 26,581.60 and 16,638.48 is: 24,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.05 : 26,581.60 = 16,638.48 : x
  2. Step 2: Convert to fraction form
    17,721.05/26,581.60 = 16,638.48/x
  3. Step 3: Cross multiply
    17,721.05x = 26,581.60 × 16,638.48
  4. Step 4: Simplify right side
    17,721.05x = 442,277,378.37
  5. Step 5: Solve for x
    x = 442,277,378.37/17,721.05
  6. Step 6: Final answer
    x = 24,957.75

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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.