Home / 20,230.66-27,918.78-11,277.93

Finding the Fourth Proportional to 20,230.66, 27,918.78 and 11,277.93

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Solution

The fourth proportional to 20,230.66, 27,918.78 and 11,277.93 is: 15,563.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.66 : 27,918.78 = 11,277.93 : x
  2. Step 2: Convert to fraction form
    20,230.66/27,918.78 = 11,277.93/x
  3. Step 3: Cross multiply
    20,230.66x = 27,918.78 × 11,277.93
  4. Step 4: Simplify right side
    20,230.66x = 314,866,046.53
  5. Step 5: Solve for x
    x = 314,866,046.53/20,230.66
  6. Step 6: Final answer
    x = 15,563.81

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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.