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Finding the Fourth Proportional to 22,002.70, 32,991.90 and 8,840.20

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Solution

The fourth proportional to 22,002.70, 32,991.90 and 8,840.20 is: 13,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.70 : 32,991.90 = 8,840.20 : x
  2. Step 2: Convert to fraction form
    22,002.70/32,991.90 = 8,840.20/x
  3. Step 3: Cross multiply
    22,002.70x = 32,991.90 × 8,840.20
  4. Step 4: Simplify right side
    22,002.70x = 291,654,994.38
  5. Step 5: Solve for x
    x = 291,654,994.38/22,002.70
  6. Step 6: Final answer
    x = 13,255.42

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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.