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Finding the Fourth Proportional to 21,377.44, 32,048.88 and 8,906.86

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Solution

The fourth proportional to 21,377.44, 32,048.88 and 8,906.86 is: 13,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.44 : 32,048.88 = 8,906.86 : x
  2. Step 2: Convert to fraction form
    21,377.44/32,048.88 = 8,906.86/x
  3. Step 3: Cross multiply
    21,377.44x = 32,048.88 × 8,906.86
  4. Step 4: Simplify right side
    21,377.44x = 285,454,887.32
  5. Step 5: Solve for x
    x = 285,454,887.32/21,377.44
  6. Step 6: Final answer
    x = 13,353.09

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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.