Home / 22,203.98-30,655.08-21,138.33

Finding the Fourth Proportional to 22,203.98, 30,655.08 and 21,138.33

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Solution

The fourth proportional to 22,203.98, 30,655.08 and 21,138.33 is: 29,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.98 : 30,655.08 = 21,138.33 : x
  2. Step 2: Convert to fraction form
    22,203.98/30,655.08 = 21,138.33/x
  3. Step 3: Cross multiply
    22,203.98x = 30,655.08 × 21,138.33
  4. Step 4: Simplify right side
    22,203.98x = 647,997,197.22
  5. Step 5: Solve for x
    x = 647,997,197.22/22,203.98
  6. Step 6: Final answer
    x = 29,183.84

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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.