Home / 31,839.34-43,924.66-19,881.92

Finding the Fourth Proportional to 31,839.34, 43,924.66 and 19,881.92

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Solution

The fourth proportional to 31,839.34, 43,924.66 and 19,881.92 is: 27,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,839.34 : 43,924.66 = 19,881.92 : x
  2. Step 2: Convert to fraction form
    31,839.34/43,924.66 = 19,881.92/x
  3. Step 3: Cross multiply
    31,839.34x = 43,924.66 × 19,881.92
  4. Step 4: Simplify right side
    31,839.34x = 873,306,306.82
  5. Step 5: Solve for x
    x = 873,306,306.82/31,839.34
  6. Step 6: Final answer
    x = 27,428.53

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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.