Home / 27,998.10-41,989.86-9,279.81

Finding the Fourth Proportional to 27,998.10, 41,989.86 and 9,279.81

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Solution

The fourth proportional to 27,998.10, 41,989.86 and 9,279.81 is: 13,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.10 : 41,989.86 = 9,279.81 : x
  2. Step 2: Convert to fraction form
    27,998.10/41,989.86 = 9,279.81/x
  3. Step 3: Cross multiply
    27,998.10x = 41,989.86 × 9,279.81
  4. Step 4: Simplify right side
    27,998.10x = 389,657,922.73
  5. Step 5: Solve for x
    x = 389,657,922.73/27,998.10
  6. Step 6: Final answer
    x = 13,917.30

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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.