Home / 20,167.66-27,831.26-11,214.64

Finding the Fourth Proportional to 20,167.66, 27,831.26 and 11,214.64

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Solution

The fourth proportional to 20,167.66, 27,831.26 and 11,214.64 is: 15,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.66 : 27,831.26 = 11,214.64 : x
  2. Step 2: Convert to fraction form
    20,167.66/27,831.26 = 11,214.64/x
  3. Step 3: Cross multiply
    20,167.66x = 27,831.26 × 11,214.64
  4. Step 4: Simplify right side
    20,167.66x = 312,117,561.65
  5. Step 5: Solve for x
    x = 312,117,561.65/20,167.66
  6. Step 6: Final answer
    x = 15,476.14

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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.