Home / 31,962.21-47,964.51-11,185.71

Finding the Fourth Proportional to 31,962.21, 47,964.51 and 11,185.71

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Solution

The fourth proportional to 31,962.21, 47,964.51 and 11,185.71 is: 16,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,962.21 : 47,964.51 = 11,185.71 : x
  2. Step 2: Convert to fraction form
    31,962.21/47,964.51 = 11,185.71/x
  3. Step 3: Cross multiply
    31,962.21x = 47,964.51 × 11,185.71
  4. Step 4: Simplify right side
    31,962.21x = 536,517,099.15
  5. Step 5: Solve for x
    x = 536,517,099.15/31,962.21
  6. Step 6: Final answer
    x = 16,785.98

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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.