Home / 31,942.22-47,920-10,880.60

Finding the Fourth Proportional to 31,942.22, 47,920 and 10,880.60

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Solution

The fourth proportional to 31,942.22, 47,920 and 10,880.60 is: 16,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942.22 : 47,920 = 10,880.60 : x
  2. Step 2: Convert to fraction form
    31,942.22/47,920 = 10,880.60/x
  3. Step 3: Cross multiply
    31,942.22x = 47,920 × 10,880.60
  4. Step 4: Simplify right side
    31,942.22x = 521,398,352
  5. Step 5: Solve for x
    x = 521,398,352/31,942.22
  6. Step 6: Final answer
    x = 16,323.17

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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.