Home / 39,825.32-54,959.14-21,922.12

Finding the Fourth Proportional to 39,825.32, 54,959.14 and 21,922.12

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Solution

The fourth proportional to 39,825.32, 54,959.14 and 21,922.12 is: 30,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.32 : 54,959.14 = 21,922.12 : x
  2. Step 2: Convert to fraction form
    39,825.32/54,959.14 = 21,922.12/x
  3. Step 3: Cross multiply
    39,825.32x = 54,959.14 × 21,922.12
  4. Step 4: Simplify right side
    39,825.32x = 1,204,820,862.18
  5. Step 5: Solve for x
    x = 1,204,820,862.18/39,825.32
  6. Step 6: Final answer
    x = 30,252.63

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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.