Home / 31,880.20-47,762.70-27,272.20

Finding the Fourth Proportional to 31,880.20, 47,762.70 and 27,272.20

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Solution

The fourth proportional to 31,880.20, 47,762.70 and 27,272.20 is: 40,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.20 : 47,762.70 = 27,272.20 : x
  2. Step 2: Convert to fraction form
    31,880.20/47,762.70 = 27,272.20/x
  3. Step 3: Cross multiply
    31,880.20x = 47,762.70 × 27,272.20
  4. Step 4: Simplify right side
    31,880.20x = 1,302,593,906.94
  5. Step 5: Solve for x
    x = 1,302,593,906.94/31,880.20
  6. Step 6: Final answer
    x = 40,859.03

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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.