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Finding the Fourth Proportional to 29,108.80, 40,201.20 and 22,868.80

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Solution

The fourth proportional to 29,108.80, 40,201.20 and 22,868.80 is: 31,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,108.80 : 40,201.20 = 22,868.80 : x
  2. Step 2: Convert to fraction form
    29,108.80/40,201.20 = 22,868.80/x
  3. Step 3: Cross multiply
    29,108.80x = 40,201.20 × 22,868.80
  4. Step 4: Simplify right side
    29,108.80x = 919,353,202.56
  5. Step 5: Solve for x
    x = 919,353,202.56/29,108.80
  6. Step 6: Final answer
    x = 31,583.34

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1.5x scale

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.