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Finding the Fourth Proportional to 29,447, 40,636.86 and 16,879.04

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Solution

The fourth proportional to 29,447, 40,636.86 and 16,879.04 is: 23,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,447 : 40,636.86 = 16,879.04 : x
  2. Step 2: Convert to fraction form
    29,447/40,636.86 = 16,879.04/x
  3. Step 3: Cross multiply
    29,447x = 40,636.86 × 16,879.04
  4. Step 4: Simplify right side
    29,447x = 685,911,185.41
  5. Step 5: Solve for x
    x = 685,911,185.41/29,447
  6. Step 6: Final answer
    x = 23,293.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.