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Finding the Fourth Proportional to 30,123.62, 41,570.60 and 16,695.74

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Solution

The fourth proportional to 30,123.62, 41,570.60 and 16,695.74 is: 23,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.62 : 41,570.60 = 16,695.74 : x
  2. Step 2: Convert to fraction form
    30,123.62/41,570.60 = 16,695.74/x
  3. Step 3: Cross multiply
    30,123.62x = 41,570.60 × 16,695.74
  4. Step 4: Simplify right side
    30,123.62x = 694,051,879.73
  5. Step 5: Solve for x
    x = 694,051,879.73/30,123.62
  6. Step 6: Final answer
    x = 23,040.12

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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.