Home / 20,180.52-27,831.38-14,127.66

Finding the Fourth Proportional to 20,180.52, 27,831.38 and 14,127.66

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Solution

The fourth proportional to 20,180.52, 27,831.38 and 14,127.66 is: 19,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.52 : 27,831.38 = 14,127.66 : x
  2. Step 2: Convert to fraction form
    20,180.52/27,831.38 = 14,127.66/x
  3. Step 3: Cross multiply
    20,180.52x = 27,831.38 × 14,127.66
  4. Step 4: Simplify right side
    20,180.52x = 393,192,273.97
  5. Step 5: Solve for x
    x = 393,192,273.97/20,180.52
  6. Step 6: Final answer
    x = 19,483.75

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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.