Home / 20,229.12-30,337.74-7,079.04

Finding the Fourth Proportional to 20,229.12, 30,337.74 and 7,079.04

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Solution

The fourth proportional to 20,229.12, 30,337.74 and 7,079.04 is: 10,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.12 : 30,337.74 = 7,079.04 : x
  2. Step 2: Convert to fraction form
    20,229.12/30,337.74 = 7,079.04/x
  3. Step 3: Cross multiply
    20,229.12x = 30,337.74 × 7,079.04
  4. Step 4: Simplify right side
    20,229.12x = 214,762,074.97
  5. Step 5: Solve for x
    x = 214,762,074.97/20,229.12
  6. Step 6: Final answer
    x = 10,616.48

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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.