Home / 38,161.20-52,662.42-21,394.20

Finding the Fourth Proportional to 38,161.20, 52,662.42 and 21,394.20

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Solution

The fourth proportional to 38,161.20, 52,662.42 and 21,394.20 is: 29,523.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.20 : 52,662.42 = 21,394.20 : x
  2. Step 2: Convert to fraction form
    38,161.20/52,662.42 = 21,394.20/x
  3. Step 3: Cross multiply
    38,161.20x = 52,662.42 × 21,394.20
  4. Step 4: Simplify right side
    38,161.20x = 1,126,670,345.96
  5. Step 5: Solve for x
    x = 1,126,670,345.96/38,161.20
  6. Step 6: Final answer
    x = 29,523.98

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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.