Home / 33,136.28-45,729.66-18,989.16

Finding the Fourth Proportional to 33,136.28, 45,729.66 and 18,989.16

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Solution

The fourth proportional to 33,136.28, 45,729.66 and 18,989.16 is: 26,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,136.28 : 45,729.66 = 18,989.16 : x
  2. Step 2: Convert to fraction form
    33,136.28/45,729.66 = 18,989.16/x
  3. Step 3: Cross multiply
    33,136.28x = 45,729.66 × 18,989.16
  4. Step 4: Simplify right side
    33,136.28x = 868,367,830.49
  5. Step 5: Solve for x
    x = 868,367,830.49/33,136.28
  6. Step 6: Final answer
    x = 26,205.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.