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Finding the Fourth Proportional to 15,605.93, 23,404.04 and 5,215.25

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Solution

The fourth proportional to 15,605.93, 23,404.04 and 5,215.25 is: 7,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.93 : 23,404.04 = 5,215.25 : x
  2. Step 2: Convert to fraction form
    15,605.93/23,404.04 = 5,215.25/x
  3. Step 3: Cross multiply
    15,605.93x = 23,404.04 × 5,215.25
  4. Step 4: Simplify right side
    15,605.93x = 122,057,893.53
  5. Step 5: Solve for x
    x = 122,057,893.53/15,605.93
  6. Step 6: Final answer
    x = 7,821.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.