Home / 16,839.40-25,287.90-11,021.80

Finding the Fourth Proportional to 16,839.40, 25,287.90 and 11,021.80

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Solution

The fourth proportional to 16,839.40, 25,287.90 and 11,021.80 is: 16,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,839.40 : 25,287.90 = 11,021.80 : x
  2. Step 2: Convert to fraction form
    16,839.40/25,287.90 = 11,021.80/x
  3. Step 3: Cross multiply
    16,839.40x = 25,287.90 × 11,021.80
  4. Step 4: Simplify right side
    16,839.40x = 278,718,176.22
  5. Step 5: Solve for x
    x = 278,718,176.22/16,839.40
  6. Step 6: Final answer
    x = 16,551.55

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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.