Home / 22,769.87-34,170.24-7,979

Finding the Fourth Proportional to 22,769.87, 34,170.24 and 7,979

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Solution

The fourth proportional to 22,769.87, 34,170.24 and 7,979 is: 11,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,769.87 : 34,170.24 = 7,979 : x
  2. Step 2: Convert to fraction form
    22,769.87/34,170.24 = 7,979/x
  3. Step 3: Cross multiply
    22,769.87x = 34,170.24 × 7,979
  4. Step 4: Simplify right side
    22,769.87x = 272,644,344.96
  5. Step 5: Solve for x
    x = 272,644,344.96/22,769.87
  6. Step 6: Final answer
    x = 11,973.91

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1.5x scale

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.