Home / 20,069.02-27,691.32-11,683.90

Finding the Fourth Proportional to 20,069.02, 27,691.32 and 11,683.90

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Solution

The fourth proportional to 20,069.02, 27,691.32 and 11,683.90 is: 16,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.02 : 27,691.32 = 11,683.90 : x
  2. Step 2: Convert to fraction form
    20,069.02/27,691.32 = 11,683.90/x
  3. Step 3: Cross multiply
    20,069.02x = 27,691.32 × 11,683.90
  4. Step 4: Simplify right side
    20,069.02x = 323,542,613.75
  5. Step 5: Solve for x
    x = 323,542,613.75/20,069.02
  6. Step 6: Final answer
    x = 16,121.50

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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.