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Finding the Fourth Proportional to 30,808.08, 46,214.42 and 8,621.17

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Solution

The fourth proportional to 30,808.08, 46,214.42 and 8,621.17 is: 12,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.08 : 46,214.42 = 8,621.17 : x
  2. Step 2: Convert to fraction form
    30,808.08/46,214.42 = 8,621.17/x
  3. Step 3: Cross multiply
    30,808.08x = 46,214.42 × 8,621.17
  4. Step 4: Simplify right side
    30,808.08x = 398,422,212.63
  5. Step 5: Solve for x
    x = 398,422,212.63/30,808.08
  6. Step 6: Final answer
    x = 12,932.39

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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.