Home / 19,878.53-29,817.49-5,087.33

Finding the Fourth Proportional to 19,878.53, 29,817.49 and 5,087.33

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Solution

The fourth proportional to 19,878.53, 29,817.49 and 5,087.33 is: 7,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.53 : 29,817.49 = 5,087.33 : x
  2. Step 2: Convert to fraction form
    19,878.53/29,817.49 = 5,087.33/x
  3. Step 3: Cross multiply
    19,878.53x = 29,817.49 × 5,087.33
  4. Step 4: Simplify right side
    19,878.53x = 151,691,411.40
  5. Step 5: Solve for x
    x = 151,691,411.40/19,878.53
  6. Step 6: Final answer
    x = 7,630.92

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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.