Home / 31,229.12-43,110.27-19,913.83

Finding the Fourth Proportional to 31,229.12, 43,110.27 and 19,913.83

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Solution

The fourth proportional to 31,229.12, 43,110.27 and 19,913.83 is: 27,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.12 : 43,110.27 = 19,913.83 : x
  2. Step 2: Convert to fraction form
    31,229.12/43,110.27 = 19,913.83/x
  3. Step 3: Cross multiply
    31,229.12x = 43,110.27 × 19,913.83
  4. Step 4: Simplify right side
    31,229.12x = 858,490,480.26
  5. Step 5: Solve for x
    x = 858,490,480.26/31,229.12
  6. Step 6: Final answer
    x = 27,490.06

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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.