Home / 22,984.50-31,721.34-12,912.96

Finding the Fourth Proportional to 22,984.50, 31,721.34 and 12,912.96

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Solution

The fourth proportional to 22,984.50, 31,721.34 and 12,912.96 is: 17,821.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,984.50 : 31,721.34 = 12,912.96 : x
  2. Step 2: Convert to fraction form
    22,984.50/31,721.34 = 12,912.96/x
  3. Step 3: Cross multiply
    22,984.50x = 31,721.34 × 12,912.96
  4. Step 4: Simplify right side
    22,984.50x = 409,616,394.57
  5. Step 5: Solve for x
    x = 409,616,394.57/22,984.50
  6. Step 6: Final answer
    x = 17,821.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.