Home / 19,729.92-27,227.34-10,777.44

Finding the Fourth Proportional to 19,729.92, 27,227.34 and 10,777.44

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Solution

The fourth proportional to 19,729.92, 27,227.34 and 10,777.44 is: 14,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.92 : 27,227.34 = 10,777.44 : x
  2. Step 2: Convert to fraction form
    19,729.92/27,227.34 = 10,777.44/x
  3. Step 3: Cross multiply
    19,729.92x = 27,227.34 × 10,777.44
  4. Step 4: Simplify right side
    19,729.92x = 293,441,023.21
  5. Step 5: Solve for x
    x = 293,441,023.21/19,729.92
  6. Step 6: Final answer
    x = 14,872.89

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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.