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Finding the Fourth Proportional to 25,379, 38,083.86 and 10,587.32

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Solution

The fourth proportional to 25,379, 38,083.86 and 10,587.32 is: 15,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379 : 38,083.86 = 10,587.32 : x
  2. Step 2: Convert to fraction form
    25,379/38,083.86 = 10,587.32/x
  3. Step 3: Cross multiply
    25,379x = 38,083.86 × 10,587.32
  4. Step 4: Simplify right side
    25,379x = 403,206,012.66
  5. Step 5: Solve for x
    x = 403,206,012.66/25,379
  6. Step 6: Final answer
    x = 15,887.39

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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.