Home / 20,723.26-28,601.80-12,224.86

Finding the Fourth Proportional to 20,723.26, 28,601.80 and 12,224.86

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Solution

The fourth proportional to 20,723.26, 28,601.80 and 12,224.86 is: 16,872.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.26 : 28,601.80 = 12,224.86 : x
  2. Step 2: Convert to fraction form
    20,723.26/28,601.80 = 12,224.86/x
  3. Step 3: Cross multiply
    20,723.26x = 28,601.80 × 12,224.86
  4. Step 4: Simplify right side
    20,723.26x = 349,653,000.75
  5. Step 5: Solve for x
    x = 349,653,000.75/20,723.26
  6. Step 6: Final answer
    x = 16,872.49

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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.