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Finding the Fourth Proportional to 43,868, 65,808.84 and 14,278.84

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Solution

The fourth proportional to 43,868, 65,808.84 and 14,278.84 is: 21,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,868 : 65,808.84 = 14,278.84 : x
  2. Step 2: Convert to fraction form
    43,868/65,808.84 = 14,278.84/x
  3. Step 3: Cross multiply
    43,868x = 65,808.84 × 14,278.84
  4. Step 4: Simplify right side
    43,868x = 939,673,896.95
  5. Step 5: Solve for x
    x = 939,673,896.95/43,868
  6. Step 6: Final answer
    x = 21,420.49

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Why These Related Problems?

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