Home / 20,227.61-27,914.97-11,275.11

Finding the Fourth Proportional to 20,227.61, 27,914.97 and 11,275.11

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Solution

The fourth proportional to 20,227.61, 27,914.97 and 11,275.11 is: 15,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.61 : 27,914.97 = 11,275.11 : x
  2. Step 2: Convert to fraction form
    20,227.61/27,914.97 = 11,275.11/x
  3. Step 3: Cross multiply
    20,227.61x = 27,914.97 × 11,275.11
  4. Step 4: Simplify right side
    20,227.61x = 314,744,357.40
  5. Step 5: Solve for x
    x = 314,744,357.40/20,227.61
  6. Step 6: Final answer
    x = 15,560.14

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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.