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Finding the Fourth Proportional to 22,961.20, 34,441.80 and 7,380.40

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Solution

The fourth proportional to 22,961.20, 34,441.80 and 7,380.40 is: 11,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,961.20 : 34,441.80 = 7,380.40 : x
  2. Step 2: Convert to fraction form
    22,961.20/34,441.80 = 7,380.40/x
  3. Step 3: Cross multiply
    22,961.20x = 34,441.80 × 7,380.40
  4. Step 4: Simplify right side
    22,961.20x = 254,194,260.72
  5. Step 5: Solve for x
    x = 254,194,260.72/22,961.20
  6. Step 6: Final answer
    x = 11,070.60

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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.