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Finding the Fourth Proportional to 30,998.98, 46,497.66 and 8,813.89

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Solution

The fourth proportional to 30,998.98, 46,497.66 and 8,813.89 is: 13,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.98 : 46,497.66 = 8,813.89 : x
  2. Step 2: Convert to fraction form
    30,998.98/46,497.66 = 8,813.89/x
  3. Step 3: Cross multiply
    30,998.98x = 46,497.66 × 8,813.89
  4. Step 4: Simplify right side
    30,998.98x = 409,825,260.50
  5. Step 5: Solve for x
    x = 409,825,260.50/30,998.98
  6. Step 6: Final answer
    x = 13,220.60

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1.5x scale

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.