Home / 21,895.80-32,831.55-9,413.70

Finding the Fourth Proportional to 21,895.80, 32,831.55 and 9,413.70

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Solution

The fourth proportional to 21,895.80, 32,831.55 and 9,413.70 is: 14,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.80 : 32,831.55 = 9,413.70 : x
  2. Step 2: Convert to fraction form
    21,895.80/32,831.55 = 9,413.70/x
  3. Step 3: Cross multiply
    21,895.80x = 32,831.55 × 9,413.70
  4. Step 4: Simplify right side
    21,895.80x = 309,066,362.24
  5. Step 5: Solve for x
    x = 309,066,362.24/21,895.80
  6. Step 6: Final answer
    x = 14,115.33

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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.