Home / 40,396.32-60,604.09-20,356.57

Finding the Fourth Proportional to 40,396.32, 60,604.09 and 20,356.57

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Solution

The fourth proportional to 40,396.32, 60,604.09 and 20,356.57 is: 30,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,396.32 : 60,604.09 = 20,356.57 : x
  2. Step 2: Convert to fraction form
    40,396.32/60,604.09 = 20,356.57/x
  3. Step 3: Cross multiply
    40,396.32x = 60,604.09 × 20,356.57
  4. Step 4: Simplify right side
    40,396.32x = 1,233,691,400.37
  5. Step 5: Solve for x
    x = 1,233,691,400.37/40,396.32
  6. Step 6: Final answer
    x = 30,539.70

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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.