Home / 31,380.67-43,297.65-17,769.02

Finding the Fourth Proportional to 31,380.67, 43,297.65 and 17,769.02

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Solution

The fourth proportional to 31,380.67, 43,297.65 and 17,769.02 is: 24,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.67 : 43,297.65 = 17,769.02 : x
  2. Step 2: Convert to fraction form
    31,380.67/43,297.65 = 17,769.02/x
  3. Step 3: Cross multiply
    31,380.67x = 43,297.65 × 17,769.02
  4. Step 4: Simplify right side
    31,380.67x = 769,356,808.80
  5. Step 5: Solve for x
    x = 769,356,808.80/31,380.67
  6. Step 6: Final answer
    x = 24,516.90

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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.