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Finding the Fourth Proportional to 30,158.68, 41,618.94 and 16,731.97

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Solution

The fourth proportional to 30,158.68, 41,618.94 and 16,731.97 is: 23,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.68 : 41,618.94 = 16,731.97 : x
  2. Step 2: Convert to fraction form
    30,158.68/41,618.94 = 16,731.97/x
  3. Step 3: Cross multiply
    30,158.68x = 41,618.94 × 16,731.97
  4. Step 4: Simplify right side
    30,158.68x = 696,366,855.51
  5. Step 5: Solve for x
    x = 696,366,855.51/30,158.68
  6. Step 6: Final answer
    x = 23,090.10

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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.