Home / 39,787.00-54,906.51-21,882.30

Finding the Fourth Proportional to 39,787.00, 54,906.51 and 21,882.30

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Solution

The fourth proportional to 39,787.00, 54,906.51 and 21,882.30 is: 30,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,787.00 : 54,906.51 = 21,882.30 : x
  2. Step 2: Convert to fraction form
    39,787.00/54,906.51 = 21,882.30/x
  3. Step 3: Cross multiply
    39,787.00x = 54,906.51 × 21,882.30
  4. Step 4: Simplify right side
    39,787.00x = 1,201,480,924.17
  5. Step 5: Solve for x
    x = 1,201,480,924.17/39,787.00
  6. Step 6: Final answer
    x = 30,197.83

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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.