Home / 22,379.22-30,882.62-12,307.63

Finding the Fourth Proportional to 22,379.22, 30,882.62 and 12,307.63

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Solution

The fourth proportional to 22,379.22, 30,882.62 and 12,307.63 is: 16,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.22 : 30,882.62 = 12,307.63 : x
  2. Step 2: Convert to fraction form
    22,379.22/30,882.62 = 12,307.63/x
  3. Step 3: Cross multiply
    22,379.22x = 30,882.62 × 12,307.63
  4. Step 4: Simplify right side
    22,379.22x = 380,091,798.85
  5. Step 5: Solve for x
    x = 380,091,798.85/22,379.22
  6. Step 6: Final answer
    x = 16,984.14

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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.