Home / 20,869.99-31,305.05-6,079.27

Finding the Fourth Proportional to 20,869.99, 31,305.05 and 6,079.27

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Solution

The fourth proportional to 20,869.99, 31,305.05 and 6,079.27 is: 9,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.99 : 31,305.05 = 6,079.27 : x
  2. Step 2: Convert to fraction form
    20,869.99/31,305.05 = 6,079.27/x
  3. Step 3: Cross multiply
    20,869.99x = 31,305.05 × 6,079.27
  4. Step 4: Simplify right side
    20,869.99x = 190,311,851.31
  5. Step 5: Solve for x
    x = 190,311,851.31/20,869.99
  6. Step 6: Final answer
    x = 9,118.92

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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.