Home / 21,939.12-32,908.66-10,260.54

Finding the Fourth Proportional to 21,939.12, 32,908.66 and 10,260.54

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Solution

The fourth proportional to 21,939.12, 32,908.66 and 10,260.54 is: 15,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.12 : 32,908.66 = 10,260.54 : x
  2. Step 2: Convert to fraction form
    21,939.12/32,908.66 = 10,260.54/x
  3. Step 3: Cross multiply
    21,939.12x = 32,908.66 × 10,260.54
  4. Step 4: Simplify right side
    21,939.12x = 337,660,622.28
  5. Step 5: Solve for x
    x = 337,660,622.28/21,939.12
  6. Step 6: Final answer
    x = 15,390.80

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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.