Home / 22,211.35-30,650.75-12,140.12

Finding the Fourth Proportional to 22,211.35, 30,650.75 and 12,140.12

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Solution

The fourth proportional to 22,211.35, 30,650.75 and 12,140.12 is: 16,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.35 : 30,650.75 = 12,140.12 : x
  2. Step 2: Convert to fraction form
    22,211.35/30,650.75 = 12,140.12/x
  3. Step 3: Cross multiply
    22,211.35x = 30,650.75 × 12,140.12
  4. Step 4: Simplify right side
    22,211.35x = 372,103,783.09
  5. Step 5: Solve for x
    x = 372,103,783.09/22,211.35
  6. Step 6: Final answer
    x = 16,752.87

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Double scale
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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.