Home / 21,408.37-29,553.47-12,452.61

Finding the Fourth Proportional to 21,408.37, 29,553.47 and 12,452.61

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Solution

The fourth proportional to 21,408.37, 29,553.47 and 12,452.61 is: 17,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.37 : 29,553.47 = 12,452.61 : x
  2. Step 2: Convert to fraction form
    21,408.37/29,553.47 = 12,452.61/x
  3. Step 3: Cross multiply
    21,408.37x = 29,553.47 × 12,452.61
  4. Step 4: Simplify right side
    21,408.37x = 368,017,836.06
  5. Step 5: Solve for x
    x = 368,017,836.06/21,408.37
  6. Step 6: Final answer
    x = 17,190.37

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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.