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Finding the Fourth Proportional to 26,802.40, 40,196.40 and 11,216.80

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Solution

The fourth proportional to 26,802.40, 40,196.40 and 11,216.80 is: 16,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,802.40 : 40,196.40 = 11,216.80 : x
  2. Step 2: Convert to fraction form
    26,802.40/40,196.40 = 11,216.80/x
  3. Step 3: Cross multiply
    26,802.40x = 40,196.40 × 11,216.80
  4. Step 4: Simplify right side
    26,802.40x = 450,874,979.52
  5. Step 5: Solve for x
    x = 450,874,979.52/26,802.40
  6. Step 6: Final answer
    x = 16,822.19

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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.