Home / 28,481.40-39,298.86-16,540.56

Finding the Fourth Proportional to 28,481.40, 39,298.86 and 16,540.56

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Solution

The fourth proportional to 28,481.40, 39,298.86 and 16,540.56 is: 22,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.40 : 39,298.86 = 16,540.56 : x
  2. Step 2: Convert to fraction form
    28,481.40/39,298.86 = 16,540.56/x
  3. Step 3: Cross multiply
    28,481.40x = 39,298.86 × 16,540.56
  4. Step 4: Simplify right side
    28,481.40x = 650,025,151.76
  5. Step 5: Solve for x
    x = 650,025,151.76/28,481.40
  6. Step 6: Final answer
    x = 22,822.79

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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.