Home / 22,290.24-30,760.34-12,218.65

Finding the Fourth Proportional to 22,290.24, 30,760.34 and 12,218.65

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Solution

The fourth proportional to 22,290.24, 30,760.34 and 12,218.65 is: 16,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.24 : 30,760.34 = 12,218.65 : x
  2. Step 2: Convert to fraction form
    22,290.24/30,760.34 = 12,218.65/x
  3. Step 3: Cross multiply
    22,290.24x = 30,760.34 × 12,218.65
  4. Step 4: Simplify right side
    22,290.24x = 375,849,932.10
  5. Step 5: Solve for x
    x = 375,849,932.10/22,290.24
  6. Step 6: Final answer
    x = 16,861.63

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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.