Home / 27,791.01-38,351.61-15,215.76

Finding the Fourth Proportional to 27,791.01, 38,351.61 and 15,215.76

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Solution

The fourth proportional to 27,791.01, 38,351.61 and 15,215.76 is: 20,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.01 : 38,351.61 = 15,215.76 : x
  2. Step 2: Convert to fraction form
    27,791.01/38,351.61 = 15,215.76/x
  3. Step 3: Cross multiply
    27,791.01x = 38,351.61 × 15,215.76
  4. Step 4: Simplify right side
    27,791.01x = 583,548,893.37
  5. Step 5: Solve for x
    x = 583,548,893.37/27,791.01
  6. Step 6: Final answer
    x = 20,997.76

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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.