Home / 31,728.21-47,592.43-8,035.75

Finding the Fourth Proportional to 31,728.21, 47,592.43 and 8,035.75

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Solution

The fourth proportional to 31,728.21, 47,592.43 and 8,035.75 is: 12,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.21 : 47,592.43 = 8,035.75 : x
  2. Step 2: Convert to fraction form
    31,728.21/47,592.43 = 8,035.75/x
  3. Step 3: Cross multiply
    31,728.21x = 47,592.43 × 8,035.75
  4. Step 4: Simplify right side
    31,728.21x = 382,440,869.37
  5. Step 5: Solve for x
    x = 382,440,869.37/31,728.21
  6. Step 6: Final answer
    x = 12,053.65

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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.