Home / 22,379.18-30,882.66-12,307.62

Finding the Fourth Proportional to 22,379.18, 30,882.66 and 12,307.62

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Solution

The fourth proportional to 22,379.18, 30,882.66 and 12,307.62 is: 16,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.18 : 30,882.66 = 12,307.62 : x
  2. Step 2: Convert to fraction form
    22,379.18/30,882.66 = 12,307.62/x
  3. Step 3: Cross multiply
    22,379.18x = 30,882.66 × 12,307.62
  4. Step 4: Simplify right side
    22,379.18x = 380,091,997.72
  5. Step 5: Solve for x
    x = 380,091,997.72/22,379.18
  6. Step 6: Final answer
    x = 16,984.18

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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.