Home / 31,867.60-47,795-30,286.88

Finding the Fourth Proportional to 31,867.60, 47,795 and 30,286.88

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Solution

The fourth proportional to 31,867.60, 47,795 and 30,286.88 is: 45,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.60 : 47,795 = 30,286.88 : x
  2. Step 2: Convert to fraction form
    31,867.60/47,795 = 30,286.88/x
  3. Step 3: Cross multiply
    31,867.60x = 47,795 × 30,286.88
  4. Step 4: Simplify right side
    31,867.60x = 1,447,561,429.60
  5. Step 5: Solve for x
    x = 1,447,561,429.60/31,867.60
  6. Step 6: Final answer
    x = 45,424.24

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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.