Home / 20,238.89-27,925.02-12,168.86

Finding the Fourth Proportional to 20,238.89, 27,925.02 and 12,168.86

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Solution

The fourth proportional to 20,238.89, 27,925.02 and 12,168.86 is: 16,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.89 : 27,925.02 = 12,168.86 : x
  2. Step 2: Convert to fraction form
    20,238.89/27,925.02 = 12,168.86/x
  3. Step 3: Cross multiply
    20,238.89x = 27,925.02 × 12,168.86
  4. Step 4: Simplify right side
    20,238.89x = 339,815,658.88
  5. Step 5: Solve for x
    x = 339,815,658.88/20,238.89
  6. Step 6: Final answer
    x = 16,790.23

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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.