Home / 20,141.89-30,213.43-9,613.02

Finding the Fourth Proportional to 20,141.89, 30,213.43 and 9,613.02

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Solution

The fourth proportional to 20,141.89, 30,213.43 and 9,613.02 is: 14,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.89 : 30,213.43 = 9,613.02 : x
  2. Step 2: Convert to fraction form
    20,141.89/30,213.43 = 9,613.02/x
  3. Step 3: Cross multiply
    20,141.89x = 30,213.43 × 9,613.02
  4. Step 4: Simplify right side
    20,141.89x = 290,442,169.53
  5. Step 5: Solve for x
    x = 290,442,169.53/20,141.89
  6. Step 6: Final answer
    x = 14,419.81

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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.