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Finding the Fourth Proportional to 22,660.40, 33,990.61 and 8,617.18

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Solution

The fourth proportional to 22,660.40, 33,990.61 and 8,617.18 is: 12,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.40 : 33,990.61 = 8,617.18 : x
  2. Step 2: Convert to fraction form
    22,660.40/33,990.61 = 8,617.18/x
  3. Step 3: Cross multiply
    22,660.40x = 33,990.61 × 8,617.18
  4. Step 4: Simplify right side
    22,660.40x = 292,903,161.59
  5. Step 5: Solve for x
    x = 292,903,161.59/22,660.40
  6. Step 6: Final answer
    x = 12,925.77

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Similar ratio
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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.