Home / 28,243.67-38,979.36-16,310.75

Finding the Fourth Proportional to 28,243.67, 38,979.36 and 16,310.75

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Solution

The fourth proportional to 28,243.67, 38,979.36 and 16,310.75 is: 22,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.67 : 38,979.36 = 16,310.75 : x
  2. Step 2: Convert to fraction form
    28,243.67/38,979.36 = 16,310.75/x
  3. Step 3: Cross multiply
    28,243.67x = 38,979.36 × 16,310.75
  4. Step 4: Simplify right side
    28,243.67x = 635,782,401.22
  5. Step 5: Solve for x
    x = 635,782,401.22/28,243.67
  6. Step 6: Final answer
    x = 22,510.62

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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.