Home / 31,548.48-47,321.69-12,822.99

Finding the Fourth Proportional to 31,548.48, 47,321.69 and 12,822.99

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Solution

The fourth proportional to 31,548.48, 47,321.69 and 12,822.99 is: 19,234.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.48 : 47,321.69 = 12,822.99 : x
  2. Step 2: Convert to fraction form
    31,548.48/47,321.69 = 12,822.99/x
  3. Step 3: Cross multiply
    31,548.48x = 47,321.69 × 12,822.99
  4. Step 4: Simplify right side
    31,548.48x = 606,805,493.54
  5. Step 5: Solve for x
    x = 606,805,493.54/31,548.48
  6. Step 6: Final answer
    x = 19,234.06

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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.