Home / 26,868.76-40,300.98-16,979.20

Finding the Fourth Proportional to 26,868.76, 40,300.98 and 16,979.20

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Solution

The fourth proportional to 26,868.76, 40,300.98 and 16,979.20 is: 25,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,868.76 : 40,300.98 = 16,979.20 : x
  2. Step 2: Convert to fraction form
    26,868.76/40,300.98 = 16,979.20/x
  3. Step 3: Cross multiply
    26,868.76x = 40,300.98 × 16,979.20
  4. Step 4: Simplify right side
    26,868.76x = 684,278,399.62
  5. Step 5: Solve for x
    x = 684,278,399.62/26,868.76
  6. Step 6: Final answer
    x = 25,467.44

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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.