Home / 31,305.57-43,201.71-17,158.44

Finding the Fourth Proportional to 31,305.57, 43,201.71 and 17,158.44

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Solution

The fourth proportional to 31,305.57, 43,201.71 and 17,158.44 is: 23,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.57 : 43,201.71 = 17,158.44 : x
  2. Step 2: Convert to fraction form
    31,305.57/43,201.71 = 17,158.44/x
  3. Step 3: Cross multiply
    31,305.57x = 43,201.71 × 17,158.44
  4. Step 4: Simplify right side
    31,305.57x = 741,273,948.93
  5. Step 5: Solve for x
    x = 741,273,948.93/31,305.57
  6. Step 6: Final answer
    x = 23,678.66

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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.