Home / 20,141.09-30,212.23-9,612.22

Finding the Fourth Proportional to 20,141.09, 30,212.23 and 9,612.22

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Solution

The fourth proportional to 20,141.09, 30,212.23 and 9,612.22 is: 14,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.09 : 30,212.23 = 9,612.22 : x
  2. Step 2: Convert to fraction form
    20,141.09/30,212.23 = 9,612.22/x
  3. Step 3: Cross multiply
    20,141.09x = 30,212.23 × 9,612.22
  4. Step 4: Simplify right side
    20,141.09x = 290,406,563.04
  5. Step 5: Solve for x
    x = 290,406,563.04/20,141.09
  6. Step 6: Final answer
    x = 14,418.61

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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.