Home / 20,073.68-27,701.92-11,121.32

Finding the Fourth Proportional to 20,073.68, 27,701.92 and 11,121.32

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Solution

The fourth proportional to 20,073.68, 27,701.92 and 11,121.32 is: 15,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.68 : 27,701.92 = 11,121.32 : x
  2. Step 2: Convert to fraction form
    20,073.68/27,701.92 = 11,121.32/x
  3. Step 3: Cross multiply
    20,073.68x = 27,701.92 × 11,121.32
  4. Step 4: Simplify right side
    20,073.68x = 308,081,916.93
  5. Step 5: Solve for x
    x = 308,081,916.93/20,073.68
  6. Step 6: Final answer
    x = 15,347.56

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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.