Home / 28,247.31-38,979.51-16,149.03

Finding the Fourth Proportional to 28,247.31, 38,979.51 and 16,149.03

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Solution

The fourth proportional to 28,247.31, 38,979.51 and 16,149.03 is: 22,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.31 : 38,979.51 = 16,149.03 : x
  2. Step 2: Convert to fraction form
    28,247.31/38,979.51 = 16,149.03/x
  3. Step 3: Cross multiply
    28,247.31x = 38,979.51 × 16,149.03
  4. Step 4: Simplify right side
    28,247.31x = 629,481,276.38
  5. Step 5: Solve for x
    x = 629,481,276.38/28,247.31
  6. Step 6: Final answer
    x = 22,284.65

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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.