Home / 27,865.33-38,454.14-15,928.92

Finding the Fourth Proportional to 27,865.33, 38,454.14 and 15,928.92

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Solution

The fourth proportional to 27,865.33, 38,454.14 and 15,928.92 is: 21,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.33 : 38,454.14 = 15,928.92 : x
  2. Step 2: Convert to fraction form
    27,865.33/38,454.14 = 15,928.92/x
  3. Step 3: Cross multiply
    27,865.33x = 38,454.14 × 15,928.92
  4. Step 4: Simplify right side
    27,865.33x = 612,532,919.73
  5. Step 5: Solve for x
    x = 612,532,919.73/27,865.33
  6. Step 6: Final answer
    x = 21,981.90

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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.