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Finding the Fourth Proportional to 22,909.60, 34,359.60 and 11,231.20

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Solution

The fourth proportional to 22,909.60, 34,359.60 and 11,231.20 is: 16,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.60 : 34,359.60 = 11,231.20 : x
  2. Step 2: Convert to fraction form
    22,909.60/34,359.60 = 11,231.20/x
  3. Step 3: Cross multiply
    22,909.60x = 34,359.60 × 11,231.20
  4. Step 4: Simplify right side
    22,909.60x = 385,899,539.52
  5. Step 5: Solve for x
    x = 385,899,539.52/22,909.60
  6. Step 6: Final answer
    x = 16,844.45

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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.