Home / 31,919.84-47,886.62-15,918.09

Finding the Fourth Proportional to 31,919.84, 47,886.62 and 15,918.09

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Solution

The fourth proportional to 31,919.84, 47,886.62 and 15,918.09 is: 23,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.84 : 47,886.62 = 15,918.09 : x
  2. Step 2: Convert to fraction form
    31,919.84/47,886.62 = 15,918.09/x
  3. Step 3: Cross multiply
    31,919.84x = 47,886.62 × 15,918.09
  4. Step 4: Simplify right side
    31,919.84x = 762,263,447.37
  5. Step 5: Solve for x
    x = 762,263,447.37/31,919.84
  6. Step 6: Final answer
    x = 23,880.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.