Home / 30,360.60-45,529.94-12,831.78

Finding the Fourth Proportional to 30,360.60, 45,529.94 and 12,831.78

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Solution

The fourth proportional to 30,360.60, 45,529.94 and 12,831.78 is: 19,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.60 : 45,529.94 = 12,831.78 : x
  2. Step 2: Convert to fraction form
    30,360.60/45,529.94 = 12,831.78/x
  3. Step 3: Cross multiply
    30,360.60x = 45,529.94 × 12,831.78
  4. Step 4: Simplify right side
    30,360.60x = 584,230,173.49
  5. Step 5: Solve for x
    x = 584,230,173.49/30,360.60
  6. Step 6: Final answer
    x = 19,243.04

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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.