Home / 28,039.43-38,694.45-15,292.64

Finding the Fourth Proportional to 28,039.43, 38,694.45 and 15,292.64

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Solution

The fourth proportional to 28,039.43, 38,694.45 and 15,292.64 is: 21,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.43 : 38,694.45 = 15,292.64 : x
  2. Step 2: Convert to fraction form
    28,039.43/38,694.45 = 15,292.64/x
  3. Step 3: Cross multiply
    28,039.43x = 38,694.45 × 15,292.64
  4. Step 4: Simplify right side
    28,039.43x = 591,740,100.38
  5. Step 5: Solve for x
    x = 591,740,100.38/28,039.43
  6. Step 6: Final answer
    x = 21,103.86

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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.