Home / 20,079.29-27,711.38-11,695.25

Finding the Fourth Proportional to 20,079.29, 27,711.38 and 11,695.25

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Solution

The fourth proportional to 20,079.29, 27,711.38 and 11,695.25 is: 16,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.29 : 27,711.38 = 11,695.25 : x
  2. Step 2: Convert to fraction form
    20,079.29/27,711.38 = 11,695.25/x
  3. Step 3: Cross multiply
    20,079.29x = 27,711.38 × 11,695.25
  4. Step 4: Simplify right side
    20,079.29x = 324,091,516.95
  5. Step 5: Solve for x
    x = 324,091,516.95/20,079.29
  6. Step 6: Final answer
    x = 16,140.59

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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.