Home / 20,112.19-30,165.68-5,322.25

Finding the Fourth Proportional to 20,112.19, 30,165.68 and 5,322.25

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Solution

The fourth proportional to 20,112.19, 30,165.68 and 5,322.25 is: 7,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.19 : 30,165.68 = 5,322.25 : x
  2. Step 2: Convert to fraction form
    20,112.19/30,165.68 = 5,322.25/x
  3. Step 3: Cross multiply
    20,112.19x = 30,165.68 × 5,322.25
  4. Step 4: Simplify right side
    20,112.19x = 160,549,188.35
  5. Step 5: Solve for x
    x = 160,549,188.35/20,112.19
  6. Step 6: Final answer
    x = 7,982.68

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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.