Home / 31,989.40-47,984.10-27,712.60

Finding the Fourth Proportional to 31,989.40, 47,984.10 and 27,712.60

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Solution

The fourth proportional to 31,989.40, 47,984.10 and 27,712.60 is: 41,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.40 : 47,984.10 = 27,712.60 : x
  2. Step 2: Convert to fraction form
    31,989.40/47,984.10 = 27,712.60/x
  3. Step 3: Cross multiply
    31,989.40x = 47,984.10 × 27,712.60
  4. Step 4: Simplify right side
    31,989.40x = 1,329,764,169.66
  5. Step 5: Solve for x
    x = 1,329,764,169.66/31,989.40
  6. Step 6: Final answer
    x = 41,568.90

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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.