Home / 39,799.68-54,922.08-21,893.52

Finding the Fourth Proportional to 39,799.68, 54,922.08 and 21,893.52

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Solution

The fourth proportional to 39,799.68, 54,922.08 and 21,893.52 is: 30,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.68 : 54,922.08 = 21,893.52 : x
  2. Step 2: Convert to fraction form
    39,799.68/54,922.08 = 21,893.52/x
  3. Step 3: Cross multiply
    39,799.68x = 54,922.08 × 21,893.52
  4. Step 4: Simplify right side
    39,799.68x = 1,202,437,656.92
  5. Step 5: Solve for x
    x = 1,202,437,656.92/39,799.68
  6. Step 6: Final answer
    x = 30,212.24

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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.