Home / 21,786.14-30,071.22-14,233.62

Finding the Fourth Proportional to 21,786.14, 30,071.22 and 14,233.62

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Solution

The fourth proportional to 21,786.14, 30,071.22 and 14,233.62 is: 19,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.14 : 30,071.22 = 14,233.62 : x
  2. Step 2: Convert to fraction form
    21,786.14/30,071.22 = 14,233.62/x
  3. Step 3: Cross multiply
    21,786.14x = 30,071.22 × 14,233.62
  4. Step 4: Simplify right side
    21,786.14x = 428,022,318.42
  5. Step 5: Solve for x
    x = 428,022,318.42/21,786.14
  6. Step 6: Final answer
    x = 19,646.54

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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.