Home / 27,789.04-38,351.07-15,849.64

Finding the Fourth Proportional to 27,789.04, 38,351.07 and 15,849.64

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Solution

The fourth proportional to 27,789.04, 38,351.07 and 15,849.64 is: 21,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.04 : 38,351.07 = 15,849.64 : x
  2. Step 2: Convert to fraction form
    27,789.04/38,351.07 = 15,849.64/x
  3. Step 3: Cross multiply
    27,789.04x = 38,351.07 × 15,849.64
  4. Step 4: Simplify right side
    27,789.04x = 607,850,382.11
  5. Step 5: Solve for x
    x = 607,850,382.11/27,789.04
  6. Step 6: Final answer
    x = 21,873.75

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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.