Home / 28,863.68-43,279.92-10,138.88

Finding the Fourth Proportional to 28,863.68, 43,279.92 and 10,138.88

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Solution

The fourth proportional to 28,863.68, 43,279.92 and 10,138.88 is: 15,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.68 : 43,279.92 = 10,138.88 : x
  2. Step 2: Convert to fraction form
    28,863.68/43,279.92 = 10,138.88/x
  3. Step 3: Cross multiply
    28,863.68x = 43,279.92 × 10,138.88
  4. Step 4: Simplify right side
    28,863.68x = 438,809,915.29
  5. Step 5: Solve for x
    x = 438,809,915.29/28,863.68
  6. Step 6: Final answer
    x = 15,202.84

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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.