Home / 21,971.60-30,322.67-12,413.24

Finding the Fourth Proportional to 21,971.60, 30,322.67 and 12,413.24

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Solution

The fourth proportional to 21,971.60, 30,322.67 and 12,413.24 is: 17,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.60 : 30,322.67 = 12,413.24 : x
  2. Step 2: Convert to fraction form
    21,971.60/30,322.67 = 12,413.24/x
  3. Step 3: Cross multiply
    21,971.60x = 30,322.67 × 12,413.24
  4. Step 4: Simplify right side
    21,971.60x = 376,402,686.99
  5. Step 5: Solve for x
    x = 376,402,686.99/21,971.60
  6. Step 6: Final answer
    x = 17,131.33

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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.