Home / 28,921.92-39,914.28-16,346.76

Finding the Fourth Proportional to 28,921.92, 39,914.28 and 16,346.76

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Solution

The fourth proportional to 28,921.92, 39,914.28 and 16,346.76 is: 22,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.92 : 39,914.28 = 16,346.76 : x
  2. Step 2: Convert to fraction form
    28,921.92/39,914.28 = 16,346.76/x
  3. Step 3: Cross multiply
    28,921.92x = 39,914.28 × 16,346.76
  4. Step 4: Simplify right side
    28,921.92x = 652,469,155.73
  5. Step 5: Solve for x
    x = 652,469,155.73/28,921.92
  6. Step 6: Final answer
    x = 22,559.68

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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.