Home / 22,239.43-30,690.16-12,168.16

Finding the Fourth Proportional to 22,239.43, 30,690.16 and 12,168.16

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Solution

The fourth proportional to 22,239.43, 30,690.16 and 12,168.16 is: 16,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.43 : 30,690.16 = 12,168.16 : x
  2. Step 2: Convert to fraction form
    22,239.43/30,690.16 = 12,168.16/x
  3. Step 3: Cross multiply
    22,239.43x = 30,690.16 × 12,168.16
  4. Step 4: Simplify right side
    22,239.43x = 373,442,777.31
  5. Step 5: Solve for x
    x = 373,442,777.31/22,239.43
  6. Step 6: Final answer
    x = 16,791.92

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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.