Home / 38,803.91-58,211.94-12,511.31

Finding the Fourth Proportional to 38,803.91, 58,211.94 and 12,511.31

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Solution

The fourth proportional to 38,803.91, 58,211.94 and 12,511.31 is: 18,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,803.91 : 58,211.94 = 12,511.31 : x
  2. Step 2: Convert to fraction form
    38,803.91/58,211.94 = 12,511.31/x
  3. Step 3: Cross multiply
    38,803.91x = 58,211.94 × 12,511.31
  4. Step 4: Simplify right side
    38,803.91x = 728,307,675.15
  5. Step 5: Solve for x
    x = 728,307,675.15/38,803.91
  6. Step 6: Final answer
    x = 18,768.92

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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.