Home / 31,728.57-43,786.81-17,581.38

Finding the Fourth Proportional to 31,728.57, 43,786.81 and 17,581.38

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Solution

The fourth proportional to 31,728.57, 43,786.81 and 17,581.38 is: 24,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.57 : 43,786.81 = 17,581.38 : x
  2. Step 2: Convert to fraction form
    31,728.57/43,786.81 = 17,581.38/x
  3. Step 3: Cross multiply
    31,728.57x = 43,786.81 × 17,581.38
  4. Step 4: Simplify right side
    31,728.57x = 769,832,545.60
  5. Step 5: Solve for x
    x = 769,832,545.60/31,728.57
  6. Step 6: Final answer
    x = 24,263.07

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1.5x scale

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.