Home / 27,865.26-38,454.06-15,928.86

Finding the Fourth Proportional to 27,865.26, 38,454.06 and 15,928.86

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Solution

The fourth proportional to 27,865.26, 38,454.06 and 15,928.86 is: 21,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.26 : 38,454.06 = 15,928.86 : x
  2. Step 2: Convert to fraction form
    27,865.26/38,454.06 = 15,928.86/x
  3. Step 3: Cross multiply
    27,865.26x = 38,454.06 × 15,928.86
  4. Step 4: Simplify right side
    27,865.26x = 612,529,338.17
  5. Step 5: Solve for x
    x = 612,529,338.17/27,865.26
  6. Step 6: Final answer
    x = 21,981.83

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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.