Home / 20,230.26-30,345.33-5,439.17

Finding the Fourth Proportional to 20,230.26, 30,345.33 and 5,439.17

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Solution

The fourth proportional to 20,230.26, 30,345.33 and 5,439.17 is: 8,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.26 : 30,345.33 = 5,439.17 : x
  2. Step 2: Convert to fraction form
    20,230.26/30,345.33 = 5,439.17/x
  3. Step 3: Cross multiply
    20,230.26x = 30,345.33 × 5,439.17
  4. Step 4: Simplify right side
    20,230.26x = 165,053,504.84
  5. Step 5: Solve for x
    x = 165,053,504.84/20,230.26
  6. Step 6: Final answer
    x = 8,158.75

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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.