Home / 27,963.30-38,589.75-15,216.87

Finding the Fourth Proportional to 27,963.30, 38,589.75 and 15,216.87

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Solution

The fourth proportional to 27,963.30, 38,589.75 and 15,216.87 is: 20,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.30 : 38,589.75 = 15,216.87 : x
  2. Step 2: Convert to fraction form
    27,963.30/38,589.75 = 15,216.87/x
  3. Step 3: Cross multiply
    27,963.30x = 38,589.75 × 15,216.87
  4. Step 4: Simplify right side
    27,963.30x = 587,215,209.08
  5. Step 5: Solve for x
    x = 587,215,209.08/27,963.30
  6. Step 6: Final answer
    x = 20,999.50

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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.