Home / 20,108.24-30,164.28-7,797.20

Finding the Fourth Proportional to 20,108.24, 30,164.28 and 7,797.20

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Solution

The fourth proportional to 20,108.24, 30,164.28 and 7,797.20 is: 11,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.24 : 30,164.28 = 7,797.20 : x
  2. Step 2: Convert to fraction form
    20,108.24/30,164.28 = 7,797.20/x
  3. Step 3: Cross multiply
    20,108.24x = 30,164.28 × 7,797.20
  4. Step 4: Simplify right side
    20,108.24x = 235,196,924.02
  5. Step 5: Solve for x
    x = 235,196,924.02/20,108.24
  6. Step 6: Final answer
    x = 11,696.54

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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.