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Finding the Fourth Proportional to 20,150.88, 30,223.92 and 5,360.88

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Solution

The fourth proportional to 20,150.88, 30,223.92 and 5,360.88 is: 8,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.88 : 30,223.92 = 5,360.88 : x
  2. Step 2: Convert to fraction form
    20,150.88/30,223.92 = 5,360.88/x
  3. Step 3: Cross multiply
    20,150.88x = 30,223.92 × 5,360.88
  4. Step 4: Simplify right side
    20,150.88x = 162,026,808.25
  5. Step 5: Solve for x
    x = 162,026,808.25/20,150.88
  6. Step 6: Final answer
    x = 8,040.68

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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.