Home / 20,095.92-27,729.80-11,143.36

Finding the Fourth Proportional to 20,095.92, 27,729.80 and 11,143.36

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Solution

The fourth proportional to 20,095.92, 27,729.80 and 11,143.36 is: 15,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.92 : 27,729.80 = 11,143.36 : x
  2. Step 2: Convert to fraction form
    20,095.92/27,729.80 = 11,143.36/x
  3. Step 3: Cross multiply
    20,095.92x = 27,729.80 × 11,143.36
  4. Step 4: Simplify right side
    20,095.92x = 309,003,144.13
  5. Step 5: Solve for x
    x = 309,003,144.13/20,095.92
  6. Step 6: Final answer
    x = 15,376.41

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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.