Home / 20,164.61-30,229.30-9,629.35

Finding the Fourth Proportional to 20,164.61, 30,229.30 and 9,629.35

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Solution

The fourth proportional to 20,164.61, 30,229.30 and 9,629.35 is: 14,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.61 : 30,229.30 = 9,629.35 : x
  2. Step 2: Convert to fraction form
    20,164.61/30,229.30 = 9,629.35/x
  3. Step 3: Cross multiply
    20,164.61x = 30,229.30 × 9,629.35
  4. Step 4: Simplify right side
    20,164.61x = 291,088,446.42
  5. Step 5: Solve for x
    x = 291,088,446.42/20,164.61
  6. Step 6: Final answer
    x = 14,435.61

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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.