Home / 28,046.25-38,704.55-15,299.64

Finding the Fourth Proportional to 28,046.25, 38,704.55 and 15,299.64

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Solution

The fourth proportional to 28,046.25, 38,704.55 and 15,299.64 is: 21,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.25 : 38,704.55 = 15,299.64 : x
  2. Step 2: Convert to fraction form
    28,046.25/38,704.55 = 15,299.64/x
  3. Step 3: Cross multiply
    28,046.25x = 38,704.55 × 15,299.64
  4. Step 4: Simplify right side
    28,046.25x = 592,165,799.78
  5. Step 5: Solve for x
    x = 592,165,799.78/28,046.25
  6. Step 6: Final answer
    x = 21,113.90

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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.