Home / 20,288.54-30,406.44-8,266.66

Finding the Fourth Proportional to 20,288.54, 30,406.44 and 8,266.66

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Solution

The fourth proportional to 20,288.54, 30,406.44 and 8,266.66 is: 12,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.54 : 30,406.44 = 8,266.66 : x
  2. Step 2: Convert to fraction form
    20,288.54/30,406.44 = 8,266.66/x
  3. Step 3: Cross multiply
    20,288.54x = 30,406.44 × 8,266.66
  4. Step 4: Simplify right side
    20,288.54x = 251,359,594.27
  5. Step 5: Solve for x
    x = 251,359,594.27/20,288.54
  6. Step 6: Final answer
    x = 12,389.24

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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.