Home / 27,693.62-38,215.76-15,115.94

Finding the Fourth Proportional to 27,693.62, 38,215.76 and 15,115.94

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Solution

The fourth proportional to 27,693.62, 38,215.76 and 15,115.94 is: 20,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.62 : 38,215.76 = 15,115.94 : x
  2. Step 2: Convert to fraction form
    27,693.62/38,215.76 = 15,115.94/x
  3. Step 3: Cross multiply
    27,693.62x = 38,215.76 × 15,115.94
  4. Step 4: Simplify right side
    27,693.62x = 577,667,135.21
  5. Step 5: Solve for x
    x = 577,667,135.21/27,693.62
  6. Step 6: Final answer
    x = 20,859.21

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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.