Home / 20,701.44-31,044.87-6,660.90

Finding the Fourth Proportional to 20,701.44, 31,044.87 and 6,660.90

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Solution

The fourth proportional to 20,701.44, 31,044.87 and 6,660.90 is: 9,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.44 : 31,044.87 = 6,660.90 : x
  2. Step 2: Convert to fraction form
    20,701.44/31,044.87 = 6,660.90/x
  3. Step 3: Cross multiply
    20,701.44x = 31,044.87 × 6,660.90
  4. Step 4: Simplify right side
    20,701.44x = 206,786,774.58
  5. Step 5: Solve for x
    x = 206,786,774.58/20,701.44
  6. Step 6: Final answer
    x = 9,989.00

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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.