Home / 27,422.26-37,806.12-21,775.70

Finding the Fourth Proportional to 27,422.26, 37,806.12 and 21,775.70

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Solution

The fourth proportional to 27,422.26, 37,806.12 and 21,775.70 is: 30,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,422.26 : 37,806.12 = 21,775.70 : x
  2. Step 2: Convert to fraction form
    27,422.26/37,806.12 = 21,775.70/x
  3. Step 3: Cross multiply
    27,422.26x = 37,806.12 × 21,775.70
  4. Step 4: Simplify right side
    27,422.26x = 823,254,727.28
  5. Step 5: Solve for x
    x = 823,254,727.28/27,422.26
  6. Step 6: Final answer
    x = 30,021.40

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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.