Home / 27,963.66-38,589.93-15,216.96

Finding the Fourth Proportional to 27,963.66, 38,589.93 and 15,216.96

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Solution

The fourth proportional to 27,963.66, 38,589.93 and 15,216.96 is: 20,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.66 : 38,589.93 = 15,216.96 : x
  2. Step 2: Convert to fraction form
    27,963.66/38,589.93 = 15,216.96/x
  3. Step 3: Cross multiply
    27,963.66x = 38,589.93 × 15,216.96
  4. Step 4: Simplify right side
    27,963.66x = 587,221,421.21
  5. Step 5: Solve for x
    x = 587,221,421.21/27,963.66
  6. Step 6: Final answer
    x = 20,999.45

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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.