Home / 31,941.14-47,912.06-12,220.70

Finding the Fourth Proportional to 31,941.14, 47,912.06 and 12,220.70

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Solution

The fourth proportional to 31,941.14, 47,912.06 and 12,220.70 is: 18,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.14 : 47,912.06 = 12,220.70 : x
  2. Step 2: Convert to fraction form
    31,941.14/47,912.06 = 12,220.70/x
  3. Step 3: Cross multiply
    31,941.14x = 47,912.06 × 12,220.70
  4. Step 4: Simplify right side
    31,941.14x = 585,518,911.64
  5. Step 5: Solve for x
    x = 585,518,911.64/31,941.14
  6. Step 6: Final answer
    x = 18,331.18

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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.