Home / 18,831.96-28,268.38-14,165.28

Finding the Fourth Proportional to 18,831.96, 28,268.38 and 14,165.28

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Solution

The fourth proportional to 18,831.96, 28,268.38 and 14,165.28 is: 21,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.96 : 28,268.38 = 14,165.28 : x
  2. Step 2: Convert to fraction form
    18,831.96/28,268.38 = 14,165.28/x
  3. Step 3: Cross multiply
    18,831.96x = 28,268.38 × 14,165.28
  4. Step 4: Simplify right side
    18,831.96x = 400,429,517.85
  5. Step 5: Solve for x
    x = 400,429,517.85/18,831.96
  6. Step 6: Final answer
    x = 21,263.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.