Home / 27,788.75-38,340.90-15,847.73

Finding the Fourth Proportional to 27,788.75, 38,340.90 and 15,847.73

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Solution

The fourth proportional to 27,788.75, 38,340.90 and 15,847.73 is: 21,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.75 : 38,340.90 = 15,847.73 : x
  2. Step 2: Convert to fraction form
    27,788.75/38,340.90 = 15,847.73/x
  3. Step 3: Cross multiply
    27,788.75x = 38,340.90 × 15,847.73
  4. Step 4: Simplify right side
    27,788.75x = 607,616,231.16
  5. Step 5: Solve for x
    x = 607,616,231.16/27,788.75
  6. Step 6: Final answer
    x = 21,865.55

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Double scale
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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.