Home / 20,101.08-30,154.20-7,449.12

Finding the Fourth Proportional to 20,101.08, 30,154.20 and 7,449.12

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Solution

The fourth proportional to 20,101.08, 30,154.20 and 7,449.12 is: 11,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.08 : 30,154.20 = 7,449.12 : x
  2. Step 2: Convert to fraction form
    20,101.08/30,154.20 = 7,449.12/x
  3. Step 3: Cross multiply
    20,101.08x = 30,154.20 × 7,449.12
  4. Step 4: Simplify right side
    20,101.08x = 224,622,254.30
  5. Step 5: Solve for x
    x = 224,622,254.30/20,101.08
  6. Step 6: Final answer
    x = 11,174.64

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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.