Home / 31,450.88-43,422.24-19,531.68

Finding the Fourth Proportional to 31,450.88, 43,422.24 and 19,531.68

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Solution

The fourth proportional to 31,450.88, 43,422.24 and 19,531.68 is: 26,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.88 : 43,422.24 = 19,531.68 : x
  2. Step 2: Convert to fraction form
    31,450.88/43,422.24 = 19,531.68/x
  3. Step 3: Cross multiply
    31,450.88x = 43,422.24 × 19,531.68
  4. Step 4: Simplify right side
    31,450.88x = 848,109,296.56
  5. Step 5: Solve for x
    x = 848,109,296.56/31,450.88
  6. Step 6: Final answer
    x = 26,966.15

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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.