Home / 22,188.94-33,283.71-12,390.57

Finding the Fourth Proportional to 22,188.94, 33,283.71 and 12,390.57

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Solution

The fourth proportional to 22,188.94, 33,283.71 and 12,390.57 is: 18,586.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.94 : 33,283.71 = 12,390.57 : x
  2. Step 2: Convert to fraction form
    22,188.94/33,283.71 = 12,390.57/x
  3. Step 3: Cross multiply
    22,188.94x = 33,283.71 × 12,390.57
  4. Step 4: Simplify right side
    22,188.94x = 412,404,138.61
  5. Step 5: Solve for x
    x = 412,404,138.61/22,188.94
  6. Step 6: Final answer
    x = 18,586.02

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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.