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Finding the Fourth Proportional to 22,136.80, 33,204.48 and 8,985.64

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Solution

The fourth proportional to 22,136.80, 33,204.48 and 8,985.64 is: 13,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.80 : 33,204.48 = 8,985.64 : x
  2. Step 2: Convert to fraction form
    22,136.80/33,204.48 = 8,985.64/x
  3. Step 3: Cross multiply
    22,136.80x = 33,204.48 × 8,985.64
  4. Step 4: Simplify right side
    22,136.80x = 298,363,503.67
  5. Step 5: Solve for x
    x = 298,363,503.67/22,136.80
  6. Step 6: Final answer
    x = 13,478.17

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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.