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Finding the Fourth Proportional to 30,397.67, 41,948.43 and 16,972.25

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Solution

The fourth proportional to 30,397.67, 41,948.43 and 16,972.25 is: 23,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,397.67 : 41,948.43 = 16,972.25 : x
  2. Step 2: Convert to fraction form
    30,397.67/41,948.43 = 16,972.25/x
  3. Step 3: Cross multiply
    30,397.67x = 41,948.43 × 16,972.25
  4. Step 4: Simplify right side
    30,397.67x = 711,959,241.07
  5. Step 5: Solve for x
    x = 711,959,241.07/30,397.67
  6. Step 6: Final answer
    x = 23,421.51

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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.