Home / 21,199.73-31,800.72-6,408.27

Finding the Fourth Proportional to 21,199.73, 31,800.72 and 6,408.27

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Solution

The fourth proportional to 21,199.73, 31,800.72 and 6,408.27 is: 9,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.73 : 31,800.72 = 6,408.27 : x
  2. Step 2: Convert to fraction form
    21,199.73/31,800.72 = 6,408.27/x
  3. Step 3: Cross multiply
    21,199.73x = 31,800.72 × 6,408.27
  4. Step 4: Simplify right side
    21,199.73x = 203,787,599.95
  5. Step 5: Solve for x
    x = 203,787,599.95/21,199.73
  6. Step 6: Final answer
    x = 9,612.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.