Home / 22,160.68-30,571.44-13,203.16

Finding the Fourth Proportional to 22,160.68, 30,571.44 and 13,203.16

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Solution

The fourth proportional to 22,160.68, 30,571.44 and 13,203.16 is: 18,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.68 : 30,571.44 = 13,203.16 : x
  2. Step 2: Convert to fraction form
    22,160.68/30,571.44 = 13,203.16/x
  3. Step 3: Cross multiply
    22,160.68x = 30,571.44 × 13,203.16
  4. Step 4: Simplify right side
    22,160.68x = 403,639,613.75
  5. Step 5: Solve for x
    x = 403,639,613.75/22,160.68
  6. Step 6: Final answer
    x = 18,214.23

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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.