Home / 22,136.68-33,209.88-12,290.32

Finding the Fourth Proportional to 22,136.68, 33,209.88 and 12,290.32

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Solution

The fourth proportional to 22,136.68, 33,209.88 and 12,290.32 is: 18,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.68 : 33,209.88 = 12,290.32 : x
  2. Step 2: Convert to fraction form
    22,136.68/33,209.88 = 12,290.32/x
  3. Step 3: Cross multiply
    22,136.68x = 33,209.88 × 12,290.32
  4. Step 4: Simplify right side
    22,136.68x = 408,160,052.36
  5. Step 5: Solve for x
    x = 408,160,052.36/22,136.68
  6. Step 6: Final answer
    x = 18,438.18

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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.