Home / 22,049.24-30,429.44-12,489

Finding the Fourth Proportional to 22,049.24, 30,429.44 and 12,489

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Solution

The fourth proportional to 22,049.24, 30,429.44 and 12,489 is: 17,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,049.24 : 30,429.44 = 12,489 : x
  2. Step 2: Convert to fraction form
    22,049.24/30,429.44 = 12,489/x
  3. Step 3: Cross multiply
    22,049.24x = 30,429.44 × 12,489
  4. Step 4: Simplify right side
    22,049.24x = 380,033,276.16
  5. Step 5: Solve for x
    x = 380,033,276.16/22,049.24
  6. Step 6: Final answer
    x = 17,235.66

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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.