Home / 20,451.71-30,677.52-5,660.58

Finding the Fourth Proportional to 20,451.71, 30,677.52 and 5,660.58

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Solution

The fourth proportional to 20,451.71, 30,677.52 and 5,660.58 is: 8,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.71 : 30,677.52 = 5,660.58 : x
  2. Step 2: Convert to fraction form
    20,451.71/30,677.52 = 5,660.58/x
  3. Step 3: Cross multiply
    20,451.71x = 30,677.52 × 5,660.58
  4. Step 4: Simplify right side
    20,451.71x = 173,652,556.16
  5. Step 5: Solve for x
    x = 173,652,556.16/20,451.71
  6. Step 6: Final answer
    x = 8,490.86

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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.