Home / 19,724.97-27,220.28-10,772.45

Finding the Fourth Proportional to 19,724.97, 27,220.28 and 10,772.45

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Solution

The fourth proportional to 19,724.97, 27,220.28 and 10,772.45 is: 14,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.97 : 27,220.28 = 10,772.45 : x
  2. Step 2: Convert to fraction form
    19,724.97/27,220.28 = 10,772.45/x
  3. Step 3: Cross multiply
    19,724.97x = 27,220.28 × 10,772.45
  4. Step 4: Simplify right side
    19,724.97x = 293,229,105.29
  5. Step 5: Solve for x
    x = 293,229,105.29/19,724.97
  6. Step 6: Final answer
    x = 14,865.88

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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.