Home / 31,431.24-43,377.63-18,006.91

Finding the Fourth Proportional to 31,431.24, 43,377.63 and 18,006.91

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Solution

The fourth proportional to 31,431.24, 43,377.63 and 18,006.91 is: 24,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.24 : 43,377.63 = 18,006.91 : x
  2. Step 2: Convert to fraction form
    31,431.24/43,377.63 = 18,006.91/x
  3. Step 3: Cross multiply
    31,431.24x = 43,377.63 × 18,006.91
  4. Step 4: Simplify right side
    31,431.24x = 781,096,903.45
  5. Step 5: Solve for x
    x = 781,096,903.45/31,431.24
  6. Step 6: Final answer
    x = 24,850.97

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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.