Home / 20,151.50-30,227.20-5,360.40

Finding the Fourth Proportional to 20,151.50, 30,227.20 and 5,360.40

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Solution

The fourth proportional to 20,151.50, 30,227.20 and 5,360.40 is: 8,040.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.50 : 30,227.20 = 5,360.40 : x
  2. Step 2: Convert to fraction form
    20,151.50/30,227.20 = 5,360.40/x
  3. Step 3: Cross multiply
    20,151.50x = 30,227.20 × 5,360.40
  4. Step 4: Simplify right side
    20,151.50x = 162,029,882.88
  5. Step 5: Solve for x
    x = 162,029,882.88/20,151.50
  6. Step 6: Final answer
    x = 8,040.59

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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.