Home / 20,230.10-27,917.61-11,277.38

Finding the Fourth Proportional to 20,230.10, 27,917.61 and 11,277.38

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Solution

The fourth proportional to 20,230.10, 27,917.61 and 11,277.38 is: 15,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.10 : 27,917.61 = 11,277.38 : x
  2. Step 2: Convert to fraction form
    20,230.10/27,917.61 = 11,277.38/x
  3. Step 3: Cross multiply
    20,230.10x = 27,917.61 × 11,277.38
  4. Step 4: Simplify right side
    20,230.10x = 314,837,430.56
  5. Step 5: Solve for x
    x = 314,837,430.56/20,230.10
  6. Step 6: Final answer
    x = 15,562.82

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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.