Home / 19,724.45-27,220.22-10,771.88

Finding the Fourth Proportional to 19,724.45, 27,220.22 and 10,771.88

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Solution

The fourth proportional to 19,724.45, 27,220.22 and 10,771.88 is: 14,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.45 : 27,220.22 = 10,771.88 : x
  2. Step 2: Convert to fraction form
    19,724.45/27,220.22 = 10,771.88/x
  3. Step 3: Cross multiply
    19,724.45x = 27,220.22 × 10,771.88
  4. Step 4: Simplify right side
    19,724.45x = 293,212,895.92
  5. Step 5: Solve for x
    x = 293,212,895.92/19,724.45
  6. Step 6: Final answer
    x = 14,865.45

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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.