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Finding the Fourth Proportional to 29,901.60, 44,949.60 and 21,196.80

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Solution

The fourth proportional to 29,901.60, 44,949.60 and 21,196.80 is: 31,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,901.60 : 44,949.60 = 21,196.80 : x
  2. Step 2: Convert to fraction form
    29,901.60/44,949.60 = 21,196.80/x
  3. Step 3: Cross multiply
    29,901.60x = 44,949.60 × 21,196.80
  4. Step 4: Simplify right side
    29,901.60x = 952,787,681.28
  5. Step 5: Solve for x
    x = 952,787,681.28/29,901.60
  6. Step 6: Final answer
    x = 31,864.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.