Home / 25,935.39-35,754.75-21,918.87

Finding the Fourth Proportional to 25,935.39, 35,754.75 and 21,918.87

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Solution

The fourth proportional to 25,935.39, 35,754.75 and 21,918.87 is: 30,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,935.39 : 35,754.75 = 21,918.87 : x
  2. Step 2: Convert to fraction form
    25,935.39/35,754.75 = 21,918.87/x
  3. Step 3: Cross multiply
    25,935.39x = 35,754.75 × 21,918.87
  4. Step 4: Simplify right side
    25,935.39x = 783,703,717.13
  5. Step 5: Solve for x
    x = 783,703,717.13/25,935.39
  6. Step 6: Final answer
    x = 30,217.54

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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.