Home / 28,202.22-38,917.44-15,452.91

Finding the Fourth Proportional to 28,202.22, 38,917.44 and 15,452.91

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Solution

The fourth proportional to 28,202.22, 38,917.44 and 15,452.91 is: 21,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.22 : 38,917.44 = 15,452.91 : x
  2. Step 2: Convert to fraction form
    28,202.22/38,917.44 = 15,452.91/x
  3. Step 3: Cross multiply
    28,202.22x = 38,917.44 × 15,452.91
  4. Step 4: Simplify right side
    28,202.22x = 601,387,697.75
  5. Step 5: Solve for x
    x = 601,387,697.75/28,202.22
  6. Step 6: Final answer
    x = 21,324.13

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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.