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Finding the Fourth Proportional to 22,560.60, 33,836.94 and 8,521.86

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Solution

The fourth proportional to 22,560.60, 33,836.94 and 8,521.86 is: 12,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.60 : 33,836.94 = 8,521.86 : x
  2. Step 2: Convert to fraction form
    22,560.60/33,836.94 = 8,521.86/x
  3. Step 3: Cross multiply
    22,560.60x = 33,836.94 × 8,521.86
  4. Step 4: Simplify right side
    22,560.60x = 288,353,665.51
  5. Step 5: Solve for x
    x = 288,353,665.51/22,560.60
  6. Step 6: Final answer
    x = 12,781.29

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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.