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Finding the Fourth Proportional to 22,810.40, 34,220.40 and 7,229.60

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Solution

The fourth proportional to 22,810.40, 34,220.40 and 7,229.60 is: 10,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,810.40 : 34,220.40 = 7,229.60 : x
  2. Step 2: Convert to fraction form
    22,810.40/34,220.40 = 7,229.60/x
  3. Step 3: Cross multiply
    22,810.40x = 34,220.40 × 7,229.60
  4. Step 4: Simplify right side
    22,810.40x = 247,399,803.84
  5. Step 5: Solve for x
    x = 247,399,803.84/22,810.40
  6. Step 6: Final answer
    x = 10,845.92

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1.5x scale

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.