Home / 20,150.64-30,228.26-5,360.16

Finding the Fourth Proportional to 20,150.64, 30,228.26 and 5,360.16

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Solution

The fourth proportional to 20,150.64, 30,228.26 and 5,360.16 is: 8,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.64 : 30,228.26 = 5,360.16 : x
  2. Step 2: Convert to fraction form
    20,150.64/30,228.26 = 5,360.16/x
  3. Step 3: Cross multiply
    20,150.64x = 30,228.26 × 5,360.16
  4. Step 4: Simplify right side
    20,150.64x = 162,028,310.12
  5. Step 5: Solve for x
    x = 162,028,310.12/20,150.64
  6. Step 6: Final answer
    x = 8,040.85

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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.