Home / 27,989.96-38,624.39-15,414.71

Finding the Fourth Proportional to 27,989.96, 38,624.39 and 15,414.71

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Solution

The fourth proportional to 27,989.96, 38,624.39 and 15,414.71 is: 21,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.96 : 38,624.39 = 15,414.71 : x
  2. Step 2: Convert to fraction form
    27,989.96/38,624.39 = 15,414.71/x
  3. Step 3: Cross multiply
    27,989.96x = 38,624.39 × 15,414.71
  4. Step 4: Simplify right side
    27,989.96x = 595,383,500.58
  5. Step 5: Solve for x
    x = 595,383,500.58/27,989.96
  6. Step 6: Final answer
    x = 21,271.33

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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.