Home / 20,233.72-27,917.68-12,275.72

Finding the Fourth Proportional to 20,233.72, 27,917.68 and 12,275.72

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Solution

The fourth proportional to 20,233.72, 27,917.68 and 12,275.72 is: 16,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.72 : 27,917.68 = 12,275.72 : x
  2. Step 2: Convert to fraction form
    20,233.72/27,917.68 = 12,275.72/x
  3. Step 3: Cross multiply
    20,233.72x = 27,917.68 × 12,275.72
  4. Step 4: Simplify right side
    20,233.72x = 342,709,622.73
  5. Step 5: Solve for x
    x = 342,709,622.73/20,233.72
  6. Step 6: Final answer
    x = 16,937.55

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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.