Home / 26,385.26-36,408.32-21,021.30

Finding the Fourth Proportional to 26,385.26, 36,408.32 and 21,021.30

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Solution

The fourth proportional to 26,385.26, 36,408.32 and 21,021.30 is: 29,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385.26 : 36,408.32 = 21,021.30 : x
  2. Step 2: Convert to fraction form
    26,385.26/36,408.32 = 21,021.30/x
  3. Step 3: Cross multiply
    26,385.26x = 36,408.32 × 21,021.30
  4. Step 4: Simplify right side
    26,385.26x = 765,350,088.54
  5. Step 5: Solve for x
    x = 765,350,088.54/26,385.26
  6. Step 6: Final answer
    x = 29,006.73

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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.