Home / 27,811.53-38,380.41-15,235.47

Finding the Fourth Proportional to 27,811.53, 38,380.41 and 15,235.47

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Solution

The fourth proportional to 27,811.53, 38,380.41 and 15,235.47 is: 21,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.53 : 38,380.41 = 15,235.47 : x
  2. Step 2: Convert to fraction form
    27,811.53/38,380.41 = 15,235.47/x
  3. Step 3: Cross multiply
    27,811.53x = 38,380.41 × 15,235.47
  4. Step 4: Simplify right side
    27,811.53x = 584,743,585.14
  5. Step 5: Solve for x
    x = 584,743,585.14/27,811.53
  6. Step 6: Final answer
    x = 21,025.22

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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.