Home / 40,396.79-60,481.27-21,378.35

Finding the Fourth Proportional to 40,396.79, 60,481.27 and 21,378.35

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Solution

The fourth proportional to 40,396.79, 60,481.27 and 21,378.35 is: 32,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,396.79 : 60,481.27 = 21,378.35 : x
  2. Step 2: Convert to fraction form
    40,396.79/60,481.27 = 21,378.35/x
  3. Step 3: Cross multiply
    40,396.79x = 60,481.27 × 21,378.35
  4. Step 4: Simplify right side
    40,396.79x = 1,292,989,799.56
  5. Step 5: Solve for x
    x = 1,292,989,799.56/40,396.79
  6. Step 6: Final answer
    x = 32,007.24

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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.