Home / 25,413.98-38,135.50-19,851.70

Finding the Fourth Proportional to 25,413.98, 38,135.50 and 19,851.70

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Solution

The fourth proportional to 25,413.98, 38,135.50 and 19,851.70 is: 29,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,413.98 : 38,135.50 = 19,851.70 : x
  2. Step 2: Convert to fraction form
    25,413.98/38,135.50 = 19,851.70/x
  3. Step 3: Cross multiply
    25,413.98x = 38,135.50 × 19,851.70
  4. Step 4: Simplify right side
    25,413.98x = 757,054,505.35
  5. Step 5: Solve for x
    x = 757,054,505.35/25,413.98
  6. Step 6: Final answer
    x = 29,788.90

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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.