Home / 31,335.88-43,243.51-17,188.75

Finding the Fourth Proportional to 31,335.88, 43,243.51 and 17,188.75

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Solution

The fourth proportional to 31,335.88, 43,243.51 and 17,188.75 is: 23,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.88 : 43,243.51 = 17,188.75 : x
  2. Step 2: Convert to fraction form
    31,335.88/43,243.51 = 17,188.75/x
  3. Step 3: Cross multiply
    31,335.88x = 43,243.51 × 17,188.75
  4. Step 4: Simplify right side
    31,335.88x = 743,301,947.65
  5. Step 5: Solve for x
    x = 743,301,947.65/31,335.88
  6. Step 6: Final answer
    x = 23,720.48

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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.