Home / 19,729.76-27,227.73-10,778.10

Finding the Fourth Proportional to 19,729.76, 27,227.73 and 10,778.10

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Solution

The fourth proportional to 19,729.76, 27,227.73 and 10,778.10 is: 14,874.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.76 : 27,227.73 = 10,778.10 : x
  2. Step 2: Convert to fraction form
    19,729.76/27,227.73 = 10,778.10/x
  3. Step 3: Cross multiply
    19,729.76x = 27,227.73 × 10,778.10
  4. Step 4: Simplify right side
    19,729.76x = 293,463,156.30
  5. Step 5: Solve for x
    x = 293,463,156.30/19,729.76
  6. Step 6: Final answer
    x = 14,874.14

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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.