Home / 39,703.32-54,789.51-21,799.98

Finding the Fourth Proportional to 39,703.32, 54,789.51 and 21,799.98

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Solution

The fourth proportional to 39,703.32, 54,789.51 and 21,799.98 is: 30,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.32 : 54,789.51 = 21,799.98 : x
  2. Step 2: Convert to fraction form
    39,703.32/54,789.51 = 21,799.98/x
  3. Step 3: Cross multiply
    39,703.32x = 54,789.51 × 21,799.98
  4. Step 4: Simplify right side
    39,703.32x = 1,194,410,222.21
  5. Step 5: Solve for x
    x = 1,194,410,222.21/39,703.32
  6. Step 6: Final answer
    x = 30,083.38

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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.