Home / 25,995.15-35,840.75-21,694.40

Finding the Fourth Proportional to 25,995.15, 35,840.75 and 21,694.40

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Solution

The fourth proportional to 25,995.15, 35,840.75 and 21,694.40 is: 29,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.15 : 35,840.75 = 21,694.40 : x
  2. Step 2: Convert to fraction form
    25,995.15/35,840.75 = 21,694.40/x
  3. Step 3: Cross multiply
    25,995.15x = 35,840.75 × 21,694.40
  4. Step 4: Simplify right side
    25,995.15x = 777,543,413.53
  5. Step 5: Solve for x
    x = 777,543,413.53/25,995.15
  6. Step 6: Final answer
    x = 29,911.10

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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.