Home / 20,454.71-30,682.76-5,663.79

Finding the Fourth Proportional to 20,454.71, 30,682.76 and 5,663.79

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Solution

The fourth proportional to 20,454.71, 30,682.76 and 5,663.79 is: 8,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.71 : 30,682.76 = 5,663.79 : x
  2. Step 2: Convert to fraction form
    20,454.71/30,682.76 = 5,663.79/x
  3. Step 3: Cross multiply
    20,454.71x = 30,682.76 × 5,663.79
  4. Step 4: Simplify right side
    20,454.71x = 173,780,680.94
  5. Step 5: Solve for x
    x = 173,780,680.94/20,454.71
  6. Step 6: Final answer
    x = 8,495.88

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1.5x scale

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.