Home / 21,205.57-29,239.78-17,365.23

Finding the Fourth Proportional to 21,205.57, 29,239.78 and 17,365.23

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Solution

The fourth proportional to 21,205.57, 29,239.78 and 17,365.23 is: 23,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.57 : 29,239.78 = 17,365.23 : x
  2. Step 2: Convert to fraction form
    21,205.57/29,239.78 = 17,365.23/x
  3. Step 3: Cross multiply
    21,205.57x = 29,239.78 × 17,365.23
  4. Step 4: Simplify right side
    21,205.57x = 507,755,504.85
  5. Step 5: Solve for x
    x = 507,755,504.85/21,205.57
  6. Step 6: Final answer
    x = 23,944.44

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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.