Home / 27,016.47-37,278.90-15,687

Finding the Fourth Proportional to 27,016.47, 37,278.90 and 15,687

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Solution

The fourth proportional to 27,016.47, 37,278.90 and 15,687 is: 21,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,016.47 : 37,278.90 = 15,687 : x
  2. Step 2: Convert to fraction form
    27,016.47/37,278.90 = 15,687/x
  3. Step 3: Cross multiply
    27,016.47x = 37,278.90 × 15,687
  4. Step 4: Simplify right side
    27,016.47x = 584,794,104.30
  5. Step 5: Solve for x
    x = 584,794,104.30/27,016.47
  6. Step 6: Final answer
    x = 21,645.84

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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.