Home / 20,832.29-31,251.68-6,789.05

Finding the Fourth Proportional to 20,832.29, 31,251.68 and 6,789.05

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Solution

The fourth proportional to 20,832.29, 31,251.68 and 6,789.05 is: 10,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.29 : 31,251.68 = 6,789.05 : x
  2. Step 2: Convert to fraction form
    20,832.29/31,251.68 = 6,789.05/x
  3. Step 3: Cross multiply
    20,832.29x = 31,251.68 × 6,789.05
  4. Step 4: Simplify right side
    20,832.29x = 212,169,218.10
  5. Step 5: Solve for x
    x = 212,169,218.10/20,832.29
  6. Step 6: Final answer
    x = 10,184.63

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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.