Home / 31,335.16-43,243.86-18,757.48

Finding the Fourth Proportional to 31,335.16, 43,243.86 and 18,757.48

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Solution

The fourth proportional to 31,335.16, 43,243.86 and 18,757.48 is: 25,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.16 : 43,243.86 = 18,757.48 : x
  2. Step 2: Convert to fraction form
    31,335.16/43,243.86 = 18,757.48/x
  3. Step 3: Cross multiply
    31,335.16x = 43,243.86 × 18,757.48
  4. Step 4: Simplify right side
    31,335.16x = 811,145,839.07
  5. Step 5: Solve for x
    x = 811,145,839.07/31,335.16
  6. Step 6: Final answer
    x = 25,886.12

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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.