Home / 28,361.14-39,136.84-15,611.84

Finding the Fourth Proportional to 28,361.14, 39,136.84 and 15,611.84

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Solution

The fourth proportional to 28,361.14, 39,136.84 and 15,611.84 is: 21,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.14 : 39,136.84 = 15,611.84 : x
  2. Step 2: Convert to fraction form
    28,361.14/39,136.84 = 15,611.84/x
  3. Step 3: Cross multiply
    28,361.14x = 39,136.84 × 15,611.84
  4. Step 4: Simplify right side
    28,361.14x = 610,998,084.19
  5. Step 5: Solve for x
    x = 610,998,084.19/28,361.14
  6. Step 6: Final answer
    x = 21,543.50

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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.