Home / 27,138.34-37,451.97-15,201.78

Finding the Fourth Proportional to 27,138.34, 37,451.97 and 15,201.78

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Solution

The fourth proportional to 27,138.34, 37,451.97 and 15,201.78 is: 20,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.34 : 37,451.97 = 15,201.78 : x
  2. Step 2: Convert to fraction form
    27,138.34/37,451.97 = 15,201.78/x
  3. Step 3: Cross multiply
    27,138.34x = 37,451.97 × 15,201.78
  4. Step 4: Simplify right side
    27,138.34x = 569,336,468.06
  5. Step 5: Solve for x
    x = 569,336,468.06/27,138.34
  6. Step 6: Final answer
    x = 20,979.04

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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.