Home / 22,112.75-30,515.60-12,176.75

Finding the Fourth Proportional to 22,112.75, 30,515.60 and 12,176.75

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Solution

The fourth proportional to 22,112.75, 30,515.60 and 12,176.75 is: 16,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,112.75 : 30,515.60 = 12,176.75 : x
  2. Step 2: Convert to fraction form
    22,112.75/30,515.60 = 12,176.75/x
  3. Step 3: Cross multiply
    22,112.75x = 30,515.60 × 12,176.75
  4. Step 4: Simplify right side
    22,112.75x = 371,580,832.30
  5. Step 5: Solve for x
    x = 371,580,832.30/22,112.75
  6. Step 6: Final answer
    x = 16,803.92

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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.