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Finding the Fourth Proportional to 22,649.37, 33,987.41 and 8,621.20

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Solution

The fourth proportional to 22,649.37, 33,987.41 and 8,621.20 is: 12,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,649.37 : 33,987.41 = 8,621.20 : x
  2. Step 2: Convert to fraction form
    22,649.37/33,987.41 = 8,621.20/x
  3. Step 3: Cross multiply
    22,649.37x = 33,987.41 × 8,621.20
  4. Step 4: Simplify right side
    22,649.37x = 293,012,339.29
  5. Step 5: Solve for x
    x = 293,012,339.29/22,649.37
  6. Step 6: Final answer
    x = 12,936.89

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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.