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Finding the Fourth Proportional to 30,319.76, 41,842.58 and 16,891.00

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Solution

The fourth proportional to 30,319.76, 41,842.58 and 16,891.00 is: 23,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.76 : 41,842.58 = 16,891.00 : x
  2. Step 2: Convert to fraction form
    30,319.76/41,842.58 = 16,891.00/x
  3. Step 3: Cross multiply
    30,319.76x = 41,842.58 × 16,891.00
  4. Step 4: Simplify right side
    30,319.76x = 706,762,829.72
  5. Step 5: Solve for x
    x = 706,762,829.72/30,319.76
  6. Step 6: Final answer
    x = 23,310.30

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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.