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Finding the Fourth Proportional to 30,085.94, 41,520.12 and 16,657.76

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Solution

The fourth proportional to 30,085.94, 41,520.12 and 16,657.76 is: 22,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.94 : 41,520.12 = 16,657.76 : x
  2. Step 2: Convert to fraction form
    30,085.94/41,520.12 = 16,657.76/x
  3. Step 3: Cross multiply
    30,085.94x = 41,520.12 × 16,657.76
  4. Step 4: Simplify right side
    30,085.94x = 691,632,194.13
  5. Step 5: Solve for x
    x = 691,632,194.13/30,085.94
  6. Step 6: Final answer
    x = 22,988.55

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