Home / 31,957.48-47,905.26-12,220.84

Finding the Fourth Proportional to 31,957.48, 47,905.26 and 12,220.84

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Solution

The fourth proportional to 31,957.48, 47,905.26 and 12,220.84 is: 18,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,957.48 : 47,905.26 = 12,220.84 : x
  2. Step 2: Convert to fraction form
    31,957.48/47,905.26 = 12,220.84/x
  3. Step 3: Cross multiply
    31,957.48x = 47,905.26 × 12,220.84
  4. Step 4: Simplify right side
    31,957.48x = 585,442,517.62
  5. Step 5: Solve for x
    x = 585,442,517.62/31,957.48
  6. Step 6: Final answer
    x = 18,319.42

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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.