Home / 22,136.81-33,214.10-8,990.21

Finding the Fourth Proportional to 22,136.81, 33,214.10 and 8,990.21

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Solution

The fourth proportional to 22,136.81, 33,214.10 and 8,990.21 is: 13,488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.81 : 33,214.10 = 8,990.21 : x
  2. Step 2: Convert to fraction form
    22,136.81/33,214.10 = 8,990.21/x
  3. Step 3: Cross multiply
    22,136.81x = 33,214.10 × 8,990.21
  4. Step 4: Simplify right side
    22,136.81x = 298,601,522.94
  5. Step 5: Solve for x
    x = 298,601,522.94/22,136.81
  6. Step 6: Final answer
    x = 13,488.92

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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.