Home / 20,220.03-27,917.87-14,183.10

Finding the Fourth Proportional to 20,220.03, 27,917.87 and 14,183.10

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Solution

The fourth proportional to 20,220.03, 27,917.87 and 14,183.10 is: 19,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.03 : 27,917.87 = 14,183.10 : x
  2. Step 2: Convert to fraction form
    20,220.03/27,917.87 = 14,183.10/x
  3. Step 3: Cross multiply
    20,220.03x = 27,917.87 × 14,183.10
  4. Step 4: Simplify right side
    20,220.03x = 395,961,871.08
  5. Step 5: Solve for x
    x = 395,961,871.08/20,220.03
  6. Step 6: Final answer
    x = 19,582.65

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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.