Home / 28,002.30-41,998.38-12,198.48

Finding the Fourth Proportional to 28,002.30, 41,998.38 and 12,198.48

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Solution

The fourth proportional to 28,002.30, 41,998.38 and 12,198.48 is: 18,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.30 : 41,998.38 = 12,198.48 : x
  2. Step 2: Convert to fraction form
    28,002.30/41,998.38 = 12,198.48/x
  3. Step 3: Cross multiply
    28,002.30x = 41,998.38 × 12,198.48
  4. Step 4: Simplify right side
    28,002.30x = 512,316,398.46
  5. Step 5: Solve for x
    x = 512,316,398.46/28,002.30
  6. Step 6: Final answer
    x = 18,295.51

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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.