Home / 20,257.80-27,952.20-11,304.60

Finding the Fourth Proportional to 20,257.80, 27,952.20 and 11,304.60

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Solution

The fourth proportional to 20,257.80, 27,952.20 and 11,304.60 is: 15,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.80 : 27,952.20 = 11,304.60 : x
  2. Step 2: Convert to fraction form
    20,257.80/27,952.20 = 11,304.60/x
  3. Step 3: Cross multiply
    20,257.80x = 27,952.20 × 11,304.60
  4. Step 4: Simplify right side
    20,257.80x = 315,988,440.12
  5. Step 5: Solve for x
    x = 315,988,440.12/20,257.80
  6. Step 6: Final answer
    x = 15,598.36

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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.