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Finding the Fourth Proportional to 29,736, 44,621.28 and 13,320

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Solution

The fourth proportional to 29,736, 44,621.28 and 13,320 is: 19,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,736 : 44,621.28 = 13,320 : x
  2. Step 2: Convert to fraction form
    29,736/44,621.28 = 13,320/x
  3. Step 3: Cross multiply
    29,736x = 44,621.28 × 13,320
  4. Step 4: Simplify right side
    29,736x = 594,355,449.60
  5. Step 5: Solve for x
    x = 594,355,449.60/29,736
  6. Step 6: Final answer
    x = 19,987.74

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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.