Home / 21,011.96-31,517.92-14,418.16

Finding the Fourth Proportional to 21,011.96, 31,517.92 and 14,418.16

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Solution

The fourth proportional to 21,011.96, 31,517.92 and 14,418.16 is: 21,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011.96 : 31,517.92 = 14,418.16 : x
  2. Step 2: Convert to fraction form
    21,011.96/31,517.92 = 14,418.16/x
  3. Step 3: Cross multiply
    21,011.96x = 31,517.92 × 14,418.16
  4. Step 4: Simplify right side
    21,011.96x = 454,430,413.43
  5. Step 5: Solve for x
    x = 454,430,413.43/21,011.96
  6. Step 6: Final answer
    x = 21,627.23

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1.5x scale

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.