Home / 39,799.45-54,921.50-21,893.32

Finding the Fourth Proportional to 39,799.45, 54,921.50 and 21,893.32

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Solution

The fourth proportional to 39,799.45, 54,921.50 and 21,893.32 is: 30,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.45 : 54,921.50 = 21,893.32 : x
  2. Step 2: Convert to fraction form
    39,799.45/54,921.50 = 21,893.32/x
  3. Step 3: Cross multiply
    39,799.45x = 54,921.50 × 21,893.32
  4. Step 4: Simplify right side
    39,799.45x = 1,202,413,699.77
  5. Step 5: Solve for x
    x = 1,202,413,699.77/39,799.45
  6. Step 6: Final answer
    x = 30,211.82

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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.