Home / 25,857.32-35,686.96-15,791.55

Finding the Fourth Proportional to 25,857.32, 35,686.96 and 15,791.55

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Solution

The fourth proportional to 25,857.32, 35,686.96 and 15,791.55 is: 21,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.32 : 35,686.96 = 15,791.55 : x
  2. Step 2: Convert to fraction form
    25,857.32/35,686.96 = 15,791.55/x
  3. Step 3: Cross multiply
    25,857.32x = 35,686.96 × 15,791.55
  4. Step 4: Simplify right side
    25,857.32x = 563,552,413.19
  5. Step 5: Solve for x
    x = 563,552,413.19/25,857.32
  6. Step 6: Final answer
    x = 21,794.70

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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.