Home / 20,949.83-31,424.75-6,158.82

Finding the Fourth Proportional to 20,949.83, 31,424.75 and 6,158.82

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Solution

The fourth proportional to 20,949.83, 31,424.75 and 6,158.82 is: 9,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.83 : 31,424.75 = 6,158.82 : x
  2. Step 2: Convert to fraction form
    20,949.83/31,424.75 = 6,158.82/x
  3. Step 3: Cross multiply
    20,949.83x = 31,424.75 × 6,158.82
  4. Step 4: Simplify right side
    20,949.83x = 193,539,378.80
  5. Step 5: Solve for x
    x = 193,539,378.80/20,949.83
  6. Step 6: Final answer
    x = 9,238.23

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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.