Home / 20,217.64-27,895.62-11,831.08

Finding the Fourth Proportional to 20,217.64, 27,895.62 and 11,831.08

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Solution

The fourth proportional to 20,217.64, 27,895.62 and 11,831.08 is: 16,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.64 : 27,895.62 = 11,831.08 : x
  2. Step 2: Convert to fraction form
    20,217.64/27,895.62 = 11,831.08/x
  3. Step 3: Cross multiply
    20,217.64x = 27,895.62 × 11,831.08
  4. Step 4: Simplify right side
    20,217.64x = 330,035,311.87
  5. Step 5: Solve for x
    x = 330,035,311.87/20,217.64
  6. Step 6: Final answer
    x = 16,324.13

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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.