Home / 20,134.72-30,202.02-6,987.04

Finding the Fourth Proportional to 20,134.72, 30,202.02 and 6,987.04

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Solution

The fourth proportional to 20,134.72, 30,202.02 and 6,987.04 is: 10,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.72 : 30,202.02 = 6,987.04 : x
  2. Step 2: Convert to fraction form
    20,134.72/30,202.02 = 6,987.04/x
  3. Step 3: Cross multiply
    20,134.72x = 30,202.02 × 6,987.04
  4. Step 4: Simplify right side
    20,134.72x = 211,022,721.82
  5. Step 5: Solve for x
    x = 211,022,721.82/20,134.72
  6. Step 6: Final answer
    x = 10,480.54

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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.