Home / 21,964.23-30,318.04-13,350.39

Finding the Fourth Proportional to 21,964.23, 30,318.04 and 13,350.39

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Solution

The fourth proportional to 21,964.23, 30,318.04 and 13,350.39 is: 18,428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.23 : 30,318.04 = 13,350.39 : x
  2. Step 2: Convert to fraction form
    21,964.23/30,318.04 = 13,350.39/x
  3. Step 3: Cross multiply
    21,964.23x = 30,318.04 × 13,350.39
  4. Step 4: Simplify right side
    21,964.23x = 404,757,658.04
  5. Step 5: Solve for x
    x = 404,757,658.04/21,964.23
  6. Step 6: Final answer
    x = 18,428.04

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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.