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Finding the Fourth Proportional to 38,368.50, 52,949.61 and 21,601.50

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Solution

The fourth proportional to 38,368.50, 52,949.61 and 21,601.50 is: 29,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,368.50 : 52,949.61 = 21,601.50 : x
  2. Step 2: Convert to fraction form
    38,368.50/52,949.61 = 21,601.50/x
  3. Step 3: Cross multiply
    38,368.50x = 52,949.61 × 21,601.50
  4. Step 4: Simplify right side
    38,368.50x = 1,143,791,000.42
  5. Step 5: Solve for x
    x = 1,143,791,000.42/38,368.50
  6. Step 6: Final answer
    x = 29,810.68

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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.