Home / 25,121.43-34,711.81-19,786.97

Finding the Fourth Proportional to 25,121.43, 34,711.81 and 19,786.97

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Solution

The fourth proportional to 25,121.43, 34,711.81 and 19,786.97 is: 27,340.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.43 : 34,711.81 = 19,786.97 : x
  2. Step 2: Convert to fraction form
    25,121.43/34,711.81 = 19,786.97/x
  3. Step 3: Cross multiply
    25,121.43x = 34,711.81 × 19,786.97
  4. Step 4: Simplify right side
    25,121.43x = 686,841,543.12
  5. Step 5: Solve for x
    x = 686,841,543.12/25,121.43
  6. Step 6: Final answer
    x = 27,340.86

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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.