Home / 27,990.05-38,624.49-15,414.80

Finding the Fourth Proportional to 27,990.05, 38,624.49 and 15,414.80

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Solution

The fourth proportional to 27,990.05, 38,624.49 and 15,414.80 is: 21,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.05 : 38,624.49 = 15,414.80 : x
  2. Step 2: Convert to fraction form
    27,990.05/38,624.49 = 15,414.80/x
  3. Step 3: Cross multiply
    27,990.05x = 38,624.49 × 15,414.80
  4. Step 4: Simplify right side
    27,990.05x = 595,388,595.33
  5. Step 5: Solve for x
    x = 595,388,595.33/27,990.05
  6. Step 6: Final answer
    x = 21,271.44

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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.