Home / 31,361.66-43,285.80-18,793.70

Finding the Fourth Proportional to 31,361.66, 43,285.80 and 18,793.70

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Solution

The fourth proportional to 31,361.66, 43,285.80 and 18,793.70 is: 25,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.66 : 43,285.80 = 18,793.70 : x
  2. Step 2: Convert to fraction form
    31,361.66/43,285.80 = 18,793.70/x
  3. Step 3: Cross multiply
    31,361.66x = 43,285.80 × 18,793.70
  4. Step 4: Simplify right side
    31,361.66x = 813,500,339.46
  5. Step 5: Solve for x
    x = 813,500,339.46/31,361.66
  6. Step 6: Final answer
    x = 25,939.33

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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.