Home / 20,073.54-27,699.75-12,112.86

Finding the Fourth Proportional to 20,073.54, 27,699.75 and 12,112.86

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Solution

The fourth proportional to 20,073.54, 27,699.75 and 12,112.86 is: 16,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.54 : 27,699.75 = 12,112.86 : x
  2. Step 2: Convert to fraction form
    20,073.54/27,699.75 = 12,112.86/x
  3. Step 3: Cross multiply
    20,073.54x = 27,699.75 × 12,112.86
  4. Step 4: Simplify right side
    20,073.54x = 335,523,193.79
  5. Step 5: Solve for x
    x = 335,523,193.79/20,073.54
  6. Step 6: Final answer
    x = 16,714.70

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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.