Home / 28,321.25-42,481.40-9,601.11

Finding the Fourth Proportional to 28,321.25, 42,481.40 and 9,601.11

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Solution

The fourth proportional to 28,321.25, 42,481.40 and 9,601.11 is: 14,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.25 : 42,481.40 = 9,601.11 : x
  2. Step 2: Convert to fraction form
    28,321.25/42,481.40 = 9,601.11/x
  3. Step 3: Cross multiply
    28,321.25x = 42,481.40 × 9,601.11
  4. Step 4: Simplify right side
    28,321.25x = 407,868,546.35
  5. Step 5: Solve for x
    x = 407,868,546.35/28,321.25
  6. Step 6: Final answer
    x = 14,401.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.