Home / 30,438.76-45,661.20-8,252.52

Finding the Fourth Proportional to 30,438.76, 45,661.20 and 8,252.52

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Solution

The fourth proportional to 30,438.76, 45,661.20 and 8,252.52 is: 12,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.76 : 45,661.20 = 8,252.52 : x
  2. Step 2: Convert to fraction form
    30,438.76/45,661.20 = 8,252.52/x
  3. Step 3: Cross multiply
    30,438.76x = 45,661.20 × 8,252.52
  4. Step 4: Simplify right side
    30,438.76x = 376,819,966.22
  5. Step 5: Solve for x
    x = 376,819,966.22/30,438.76
  6. Step 6: Final answer
    x = 12,379.61

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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.