Home / 25,486.84-35,172.30-15,413.56

Finding the Fourth Proportional to 25,486.84, 35,172.30 and 15,413.56

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Solution

The fourth proportional to 25,486.84, 35,172.30 and 15,413.56 is: 21,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.84 : 35,172.30 = 15,413.56 : x
  2. Step 2: Convert to fraction form
    25,486.84/35,172.30 = 15,413.56/x
  3. Step 3: Cross multiply
    25,486.84x = 35,172.30 × 15,413.56
  4. Step 4: Simplify right side
    25,486.84x = 542,130,356.39
  5. Step 5: Solve for x
    x = 542,130,356.39/25,486.84
  6. Step 6: Final answer
    x = 21,270.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.