Home / 25,941.75-38,985.74-15,413.78

Finding the Fourth Proportional to 25,941.75, 38,985.74 and 15,413.78

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Solution

The fourth proportional to 25,941.75, 38,985.74 and 15,413.78 is: 23,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,941.75 : 38,985.74 = 15,413.78 : x
  2. Step 2: Convert to fraction form
    25,941.75/38,985.74 = 15,413.78/x
  3. Step 3: Cross multiply
    25,941.75x = 38,985.74 × 15,413.78
  4. Step 4: Simplify right side
    25,941.75x = 600,917,347.50
  5. Step 5: Solve for x
    x = 600,917,347.50/25,941.75
  6. Step 6: Final answer
    x = 23,164.10

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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.