Home / 22,239.20-30,682.68-13,165.04

Finding the Fourth Proportional to 22,239.20, 30,682.68 and 13,165.04

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Solution

The fourth proportional to 22,239.20, 30,682.68 and 13,165.04 is: 18,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.20 : 30,682.68 = 13,165.04 : x
  2. Step 2: Convert to fraction form
    22,239.20/30,682.68 = 13,165.04/x
  3. Step 3: Cross multiply
    22,239.20x = 30,682.68 × 13,165.04
  4. Step 4: Simplify right side
    22,239.20x = 403,938,709.51
  5. Step 5: Solve for x
    x = 403,938,709.51/22,239.20
  6. Step 6: Final answer
    x = 18,163.37

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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.