Home / 31,330.09-43,231.53-17,902.22

Finding the Fourth Proportional to 31,330.09, 43,231.53 and 17,902.22

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Solution

The fourth proportional to 31,330.09, 43,231.53 and 17,902.22 is: 24,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.09 : 43,231.53 = 17,902.22 : x
  2. Step 2: Convert to fraction form
    31,330.09/43,231.53 = 17,902.22/x
  3. Step 3: Cross multiply
    31,330.09x = 43,231.53 × 17,902.22
  4. Step 4: Simplify right side
    31,330.09x = 773,940,361.00
  5. Step 5: Solve for x
    x = 773,940,361.00/31,330.09
  6. Step 6: Final answer
    x = 24,702.78

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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.