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Finding the Fourth Proportional to 29,436.07, 40,620.13 and 16,861.63

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Solution

The fourth proportional to 29,436.07, 40,620.13 and 16,861.63 is: 23,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,436.07 : 40,620.13 = 16,861.63 : x
  2. Step 2: Convert to fraction form
    29,436.07/40,620.13 = 16,861.63/x
  3. Step 3: Cross multiply
    29,436.07x = 40,620.13 × 16,861.63
  4. Step 4: Simplify right side
    29,436.07x = 684,921,602.61
  5. Step 5: Solve for x
    x = 684,921,602.61/29,436.07
  6. Step 6: Final answer
    x = 23,268.11

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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.