Home / 27,919.62-38,530.89-15,984.54

Finding the Fourth Proportional to 27,919.62, 38,530.89 and 15,984.54

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Solution

The fourth proportional to 27,919.62, 38,530.89 and 15,984.54 is: 22,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.62 : 38,530.89 = 15,984.54 : x
  2. Step 2: Convert to fraction form
    27,919.62/38,530.89 = 15,984.54/x
  3. Step 3: Cross multiply
    27,919.62x = 38,530.89 × 15,984.54
  4. Step 4: Simplify right side
    27,919.62x = 615,898,552.44
  5. Step 5: Solve for x
    x = 615,898,552.44/27,919.62
  6. Step 6: Final answer
    x = 22,059.70

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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.