Home / 20,081.68-27,715.98-19,195.81

Finding the Fourth Proportional to 20,081.68, 27,715.98 and 19,195.81

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Solution

The fourth proportional to 20,081.68, 27,715.98 and 19,195.81 is: 26,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.68 : 27,715.98 = 19,195.81 : x
  2. Step 2: Convert to fraction form
    20,081.68/27,715.98 = 19,195.81/x
  3. Step 3: Cross multiply
    20,081.68x = 27,715.98 × 19,195.81
  4. Step 4: Simplify right side
    20,081.68x = 532,030,686.04
  5. Step 5: Solve for x
    x = 532,030,686.04/20,081.68
  6. Step 6: Final answer
    x = 26,493.34

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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.