Home / 20,168.48-30,250.29-5,378.59

Finding the Fourth Proportional to 20,168.48, 30,250.29 and 5,378.59

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Solution

The fourth proportional to 20,168.48, 30,250.29 and 5,378.59 is: 8,067.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.48 : 30,250.29 = 5,378.59 : x
  2. Step 2: Convert to fraction form
    20,168.48/30,250.29 = 5,378.59/x
  3. Step 3: Cross multiply
    20,168.48x = 30,250.29 × 5,378.59
  4. Step 4: Simplify right side
    20,168.48x = 162,703,907.29
  5. Step 5: Solve for x
    x = 162,703,907.29/20,168.48
  6. Step 6: Final answer
    x = 8,067.24

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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.