Home / 27,778.73-38,333.67-15,845.88

Finding the Fourth Proportional to 27,778.73, 38,333.67 and 15,845.88

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Solution

The fourth proportional to 27,778.73, 38,333.67 and 15,845.88 is: 21,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.73 : 38,333.67 = 15,845.88 : x
  2. Step 2: Convert to fraction form
    27,778.73/38,333.67 = 15,845.88/x
  3. Step 3: Cross multiply
    27,778.73x = 38,333.67 × 15,845.88
  4. Step 4: Simplify right side
    27,778.73x = 607,430,734.78
  5. Step 5: Solve for x
    x = 607,430,734.78/27,778.73
  6. Step 6: Final answer
    x = 21,866.76

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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.