Home / 21,234.21-31,851.39-6,443.25

Finding the Fourth Proportional to 21,234.21, 31,851.39 and 6,443.25

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Solution

The fourth proportional to 21,234.21, 31,851.39 and 6,443.25 is: 9,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.21 : 31,851.39 = 6,443.25 : x
  2. Step 2: Convert to fraction form
    21,234.21/31,851.39 = 6,443.25/x
  3. Step 3: Cross multiply
    21,234.21x = 31,851.39 × 6,443.25
  4. Step 4: Simplify right side
    21,234.21x = 205,226,468.62
  5. Step 5: Solve for x
    x = 205,226,468.62/21,234.21
  6. Step 6: Final answer
    x = 9,664.90

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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.