Home / 20,202.74-27,879.15-11,250.05

Finding the Fourth Proportional to 20,202.74, 27,879.15 and 11,250.05

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Solution

The fourth proportional to 20,202.74, 27,879.15 and 11,250.05 is: 15,524.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.74 : 27,879.15 = 11,250.05 : x
  2. Step 2: Convert to fraction form
    20,202.74/27,879.15 = 11,250.05/x
  3. Step 3: Cross multiply
    20,202.74x = 27,879.15 × 11,250.05
  4. Step 4: Simplify right side
    20,202.74x = 313,641,831.46
  5. Step 5: Solve for x
    x = 313,641,831.46/20,202.74
  6. Step 6: Final answer
    x = 15,524.72

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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.