Home / 21,144.84-31,717.34-6,353.80

Finding the Fourth Proportional to 21,144.84, 31,717.34 and 6,353.80

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Solution

The fourth proportional to 21,144.84, 31,717.34 and 6,353.80 is: 9,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.84 : 31,717.34 = 6,353.80 : x
  2. Step 2: Convert to fraction form
    21,144.84/31,717.34 = 6,353.80/x
  3. Step 3: Cross multiply
    21,144.84x = 31,717.34 × 6,353.80
  4. Step 4: Simplify right side
    21,144.84x = 201,525,634.89
  5. Step 5: Solve for x
    x = 201,525,634.89/21,144.84
  6. Step 6: Final answer
    x = 9,530.72

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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.