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Finding the Fourth Proportional to 20,213.52, 27,895.52 and 11,261.04

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Solution

The fourth proportional to 20,213.52, 27,895.52 and 11,261.04 is: 15,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.52 : 27,895.52 = 11,261.04 : x
  2. Step 2: Convert to fraction form
    20,213.52/27,895.52 = 11,261.04/x
  3. Step 3: Cross multiply
    20,213.52x = 27,895.52 × 11,261.04
  4. Step 4: Simplify right side
    20,213.52x = 314,132,566.54
  5. Step 5: Solve for x
    x = 314,132,566.54/20,213.52
  6. Step 6: Final answer
    x = 15,540.72

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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.