Home / 21,979.82-32,969.67-5,339.85

Finding the Fourth Proportional to 21,979.82, 32,969.67 and 5,339.85

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Solution

The fourth proportional to 21,979.82, 32,969.67 and 5,339.85 is: 8,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.82 : 32,969.67 = 5,339.85 : x
  2. Step 2: Convert to fraction form
    21,979.82/32,969.67 = 5,339.85/x
  3. Step 3: Cross multiply
    21,979.82x = 32,969.67 × 5,339.85
  4. Step 4: Simplify right side
    21,979.82x = 176,053,092.35
  5. Step 5: Solve for x
    x = 176,053,092.35/21,979.82
  6. Step 6: Final answer
    x = 8,009.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.