Home / 31,305.16-43,201.11-17,157.97

Finding the Fourth Proportional to 31,305.16, 43,201.11 and 17,157.97

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Solution

The fourth proportional to 31,305.16, 43,201.11 and 17,157.97 is: 23,677.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.16 : 43,201.11 = 17,157.97 : x
  2. Step 2: Convert to fraction form
    31,305.16/43,201.11 = 17,157.97/x
  3. Step 3: Cross multiply
    31,305.16x = 43,201.11 × 17,157.97
  4. Step 4: Simplify right side
    31,305.16x = 741,243,349.35
  5. Step 5: Solve for x
    x = 741,243,349.35/31,305.16
  6. Step 6: Final answer
    x = 23,677.99

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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.