Home / 22,211.16-30,652.11-12,139.38

Finding the Fourth Proportional to 22,211.16, 30,652.11 and 12,139.38

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Solution

The fourth proportional to 22,211.16, 30,652.11 and 12,139.38 is: 16,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.16 : 30,652.11 = 12,139.38 : x
  2. Step 2: Convert to fraction form
    22,211.16/30,652.11 = 12,139.38/x
  3. Step 3: Cross multiply
    22,211.16x = 30,652.11 × 12,139.38
  4. Step 4: Simplify right side
    22,211.16x = 372,097,611.09
  5. Step 5: Solve for x
    x = 372,097,611.09/22,211.16
  6. Step 6: Final answer
    x = 16,752.73

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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.