Home / 22,121.64-30,527.16-13,167.12

Finding the Fourth Proportional to 22,121.64, 30,527.16 and 13,167.12

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Solution

The fourth proportional to 22,121.64, 30,527.16 and 13,167.12 is: 18,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.64 : 30,527.16 = 13,167.12 : x
  2. Step 2: Convert to fraction form
    22,121.64/30,527.16 = 13,167.12/x
  3. Step 3: Cross multiply
    22,121.64x = 30,527.16 × 13,167.12
  4. Step 4: Simplify right side
    22,121.64x = 401,954,778.98
  5. Step 5: Solve for x
    x = 401,954,778.98/22,121.64
  6. Step 6: Final answer
    x = 18,170.21

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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.