Home / 20,110.15-27,744.83-12,553.61

Finding the Fourth Proportional to 20,110.15, 27,744.83 and 12,553.61

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Solution

The fourth proportional to 20,110.15, 27,744.83 and 12,553.61 is: 17,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.15 : 27,744.83 = 12,553.61 : x
  2. Step 2: Convert to fraction form
    20,110.15/27,744.83 = 12,553.61/x
  3. Step 3: Cross multiply
    20,110.15x = 27,744.83 × 12,553.61
  4. Step 4: Simplify right side
    20,110.15x = 348,297,698.95
  5. Step 5: Solve for x
    x = 348,297,698.95/20,110.15
  6. Step 6: Final answer
    x = 17,319.50

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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.