Home / 31,769.47-43,846.41-18,338.05

Finding the Fourth Proportional to 31,769.47, 43,846.41 and 18,338.05

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Solution

The fourth proportional to 31,769.47, 43,846.41 and 18,338.05 is: 25,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.47 : 43,846.41 = 18,338.05 : x
  2. Step 2: Convert to fraction form
    31,769.47/43,846.41 = 18,338.05/x
  3. Step 3: Cross multiply
    31,769.47x = 43,846.41 × 18,338.05
  4. Step 4: Simplify right side
    31,769.47x = 804,057,658.90
  5. Step 5: Solve for x
    x = 804,057,658.90/31,769.47
  6. Step 6: Final answer
    x = 25,309.13

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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.