Home / 27,761.76-38,311.55-16,856.73

Finding the Fourth Proportional to 27,761.76, 38,311.55 and 16,856.73

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Solution

The fourth proportional to 27,761.76, 38,311.55 and 16,856.73 is: 23,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.76 : 38,311.55 = 16,856.73 : x
  2. Step 2: Convert to fraction form
    27,761.76/38,311.55 = 16,856.73/x
  3. Step 3: Cross multiply
    27,761.76x = 38,311.55 × 16,856.73
  4. Step 4: Simplify right side
    27,761.76x = 645,807,369.95
  5. Step 5: Solve for x
    x = 645,807,369.95/27,761.76
  6. Step 6: Final answer
    x = 23,262.48

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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.