Home / 31,421.31-43,361.70-17,274.25

Finding the Fourth Proportional to 31,421.31, 43,361.70 and 17,274.25

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Solution

The fourth proportional to 31,421.31, 43,361.70 and 17,274.25 is: 23,838.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.31 : 43,361.70 = 17,274.25 : x
  2. Step 2: Convert to fraction form
    31,421.31/43,361.70 = 17,274.25/x
  3. Step 3: Cross multiply
    31,421.31x = 43,361.70 × 17,274.25
  4. Step 4: Simplify right side
    31,421.31x = 749,040,759.85
  5. Step 5: Solve for x
    x = 749,040,759.85/31,421.31
  6. Step 6: Final answer
    x = 23,838.63

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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.