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Finding the Fourth Proportional to 30,321, 41,841.36 and 16,708.59

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Solution

The fourth proportional to 30,321, 41,841.36 and 16,708.59 is: 23,056.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321 : 41,841.36 = 16,708.59 : x
  2. Step 2: Convert to fraction form
    30,321/41,841.36 = 16,708.59/x
  3. Step 3: Cross multiply
    30,321x = 41,841.36 × 16,708.59
  4. Step 4: Simplify right side
    30,321x = 699,110,129.28
  5. Step 5: Solve for x
    x = 699,110,129.28/30,321
  6. Step 6: Final answer
    x = 23,056.96

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1.5x scale

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.