Home / 20,061.86-27,682.65-11,109.14

Finding the Fourth Proportional to 20,061.86, 27,682.65 and 11,109.14

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Solution

The fourth proportional to 20,061.86, 27,682.65 and 11,109.14 is: 15,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.86 : 27,682.65 = 11,109.14 : x
  2. Step 2: Convert to fraction form
    20,061.86/27,682.65 = 11,109.14/x
  3. Step 3: Cross multiply
    20,061.86x = 27,682.65 × 11,109.14
  4. Step 4: Simplify right side
    20,061.86x = 307,530,296.01
  5. Step 5: Solve for x
    x = 307,530,296.01/20,061.86
  6. Step 6: Final answer
    x = 15,329.11

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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.