Home / 19,724.54-27,218.79-10,771.90

Finding the Fourth Proportional to 19,724.54, 27,218.79 and 10,771.90

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Solution

The fourth proportional to 19,724.54, 27,218.79 and 10,771.90 is: 14,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.54 : 27,218.79 = 10,771.90 : x
  2. Step 2: Convert to fraction form
    19,724.54/27,218.79 = 10,771.90/x
  3. Step 3: Cross multiply
    19,724.54x = 27,218.79 × 10,771.90
  4. Step 4: Simplify right side
    19,724.54x = 293,198,084.00
  5. Step 5: Solve for x
    x = 293,198,084.00/19,724.54
  6. Step 6: Final answer
    x = 14,864.63

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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.