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Finding the Fourth Proportional to 26,808.10, 36,989.64 and 15,477.40

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Solution

The fourth proportional to 26,808.10, 36,989.64 and 15,477.40 is: 21,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,808.10 : 36,989.64 = 15,477.40 : x
  2. Step 2: Convert to fraction form
    26,808.10/36,989.64 = 15,477.40/x
  3. Step 3: Cross multiply
    26,808.10x = 36,989.64 × 15,477.40
  4. Step 4: Simplify right side
    26,808.10x = 572,503,454.14
  5. Step 5: Solve for x
    x = 572,503,454.14/26,808.10
  6. Step 6: Final answer
    x = 21,355.61

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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.