Home / 20,252.31-27,948.86-11,753.79

Finding the Fourth Proportional to 20,252.31, 27,948.86 and 11,753.79

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Solution

The fourth proportional to 20,252.31, 27,948.86 and 11,753.79 is: 16,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.31 : 27,948.86 = 11,753.79 : x
  2. Step 2: Convert to fraction form
    20,252.31/27,948.86 = 11,753.79/x
  3. Step 3: Cross multiply
    20,252.31x = 27,948.86 × 11,753.79
  4. Step 4: Simplify right side
    20,252.31x = 328,504,972.41
  5. Step 5: Solve for x
    x = 328,504,972.41/20,252.31
  6. Step 6: Final answer
    x = 16,220.62

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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.