Home / 20,151.11-30,226.63-5,360.05

Finding the Fourth Proportional to 20,151.11, 30,226.63 and 5,360.05

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Solution

The fourth proportional to 20,151.11, 30,226.63 and 5,360.05 is: 8,040.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.11 : 30,226.63 = 5,360.05 : x
  2. Step 2: Convert to fraction form
    20,151.11/30,226.63 = 5,360.05/x
  3. Step 3: Cross multiply
    20,151.11x = 30,226.63 × 5,360.05
  4. Step 4: Simplify right side
    20,151.11x = 162,016,070.20
  5. Step 5: Solve for x
    x = 162,016,070.20/20,151.11
  6. Step 6: Final answer
    x = 8,040.06

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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.