Home / 31,305.94-43,202.19-17,158.48

Finding the Fourth Proportional to 31,305.94, 43,202.19 and 17,158.48

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Solution

The fourth proportional to 31,305.94, 43,202.19 and 17,158.48 is: 23,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.94 : 43,202.19 = 17,158.48 : x
  2. Step 2: Convert to fraction form
    31,305.94/43,202.19 = 17,158.48/x
  3. Step 3: Cross multiply
    31,305.94x = 43,202.19 × 17,158.48
  4. Step 4: Simplify right side
    31,305.94x = 741,283,869.41
  5. Step 5: Solve for x
    x = 741,283,869.41/31,305.94
  6. Step 6: Final answer
    x = 23,678.70

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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.