Home / 21,234.52-31,852.10-8,087.62

Finding the Fourth Proportional to 21,234.52, 31,852.10 and 8,087.62

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Solution

The fourth proportional to 21,234.52, 31,852.10 and 8,087.62 is: 12,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.52 : 31,852.10 = 8,087.62 : x
  2. Step 2: Convert to fraction form
    21,234.52/31,852.10 = 8,087.62/x
  3. Step 3: Cross multiply
    21,234.52x = 31,852.10 × 8,087.62
  4. Step 4: Simplify right side
    21,234.52x = 257,607,681.00
  5. Step 5: Solve for x
    x = 257,607,681.00/21,234.52
  6. Step 6: Final answer
    x = 12,131.55

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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.