Home / 20,109.23-27,751.48-12,149.92

Finding the Fourth Proportional to 20,109.23, 27,751.48 and 12,149.92

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Solution

The fourth proportional to 20,109.23, 27,751.48 and 12,149.92 is: 16,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.23 : 27,751.48 = 12,149.92 : x
  2. Step 2: Convert to fraction form
    20,109.23/27,751.48 = 12,149.92/x
  3. Step 3: Cross multiply
    20,109.23x = 27,751.48 × 12,149.92
  4. Step 4: Simplify right side
    20,109.23x = 337,178,162.13
  5. Step 5: Solve for x
    x = 337,178,162.13/20,109.23
  6. Step 6: Final answer
    x = 16,767.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.