Home / 43,218.28-64,792.86-18,611.56

Finding the Fourth Proportional to 43,218.28, 64,792.86 and 18,611.56

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Solution

The fourth proportional to 43,218.28, 64,792.86 and 18,611.56 is: 27,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,218.28 : 64,792.86 = 18,611.56 : x
  2. Step 2: Convert to fraction form
    43,218.28/64,792.86 = 18,611.56/x
  3. Step 3: Cross multiply
    43,218.28x = 64,792.86 × 18,611.56
  4. Step 4: Simplify right side
    43,218.28x = 1,205,896,201.46
  5. Step 5: Solve for x
    x = 1,205,896,201.46/43,218.28
  6. Step 6: Final answer
    x = 27,902.46

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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.