Home / 27,433.52-41,143.80-12,633.20

Finding the Fourth Proportional to 27,433.52, 41,143.80 and 12,633.20

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Solution

The fourth proportional to 27,433.52, 41,143.80 and 12,633.20 is: 18,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,433.52 : 41,143.80 = 12,633.20 : x
  2. Step 2: Convert to fraction form
    27,433.52/41,143.80 = 12,633.20/x
  3. Step 3: Cross multiply
    27,433.52x = 41,143.80 × 12,633.20
  4. Step 4: Simplify right side
    27,433.52x = 519,777,854.16
  5. Step 5: Solve for x
    x = 519,777,854.16/27,433.52
  6. Step 6: Final answer
    x = 18,946.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.