Home / 43,132.32-64,652.11-20,896.61

Finding the Fourth Proportional to 43,132.32, 64,652.11 and 20,896.61

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Solution

The fourth proportional to 43,132.32, 64,652.11 and 20,896.61 is: 31,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,132.32 : 64,652.11 = 20,896.61 : x
  2. Step 2: Convert to fraction form
    43,132.32/64,652.11 = 20,896.61/x
  3. Step 3: Cross multiply
    43,132.32x = 64,652.11 × 20,896.61
  4. Step 4: Simplify right side
    43,132.32x = 1,351,009,552.85
  5. Step 5: Solve for x
    x = 1,351,009,552.85/43,132.32
  6. Step 6: Final answer
    x = 31,322.44

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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.