Home / 20,634.43-28,475.24-11,681.71

Finding the Fourth Proportional to 20,634.43, 28,475.24 and 11,681.71

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Solution

The fourth proportional to 20,634.43, 28,475.24 and 11,681.71 is: 16,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.43 : 28,475.24 = 11,681.71 : x
  2. Step 2: Convert to fraction form
    20,634.43/28,475.24 = 11,681.71/x
  3. Step 3: Cross multiply
    20,634.43x = 28,475.24 × 11,681.71
  4. Step 4: Simplify right side
    20,634.43x = 332,639,495.86
  5. Step 5: Solve for x
    x = 332,639,495.86/20,634.43
  6. Step 6: Final answer
    x = 16,120.61

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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.