Home / 22,360.21-30,856.44-12,799.78

Finding the Fourth Proportional to 22,360.21, 30,856.44 and 12,799.78

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Solution

The fourth proportional to 22,360.21, 30,856.44 and 12,799.78 is: 17,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.21 : 30,856.44 = 12,799.78 : x
  2. Step 2: Convert to fraction form
    22,360.21/30,856.44 = 12,799.78/x
  3. Step 3: Cross multiply
    22,360.21x = 30,856.44 × 12,799.78
  4. Step 4: Simplify right side
    22,360.21x = 394,955,831.40
  5. Step 5: Solve for x
    x = 394,955,831.40/22,360.21
  6. Step 6: Final answer
    x = 17,663.33

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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.