Home / 20,020.72-30,032.84-5,229.52

Finding the Fourth Proportional to 20,020.72, 30,032.84 and 5,229.52

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Solution

The fourth proportional to 20,020.72, 30,032.84 and 5,229.52 is: 7,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.72 : 30,032.84 = 5,229.52 : x
  2. Step 2: Convert to fraction form
    20,020.72/30,032.84 = 5,229.52/x
  3. Step 3: Cross multiply
    20,020.72x = 30,032.84 × 5,229.52
  4. Step 4: Simplify right side
    20,020.72x = 157,057,337.44
  5. Step 5: Solve for x
    x = 157,057,337.44/20,020.72
  6. Step 6: Final answer
    x = 7,844.74

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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.