Home / 14,333.78-21,500.69-3,945.53

Finding the Fourth Proportional to 14,333.78, 21,500.69 and 3,945.53

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Solution

The fourth proportional to 14,333.78, 21,500.69 and 3,945.53 is: 5,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,333.78 : 21,500.69 = 3,945.53 : x
  2. Step 2: Convert to fraction form
    14,333.78/21,500.69 = 3,945.53/x
  3. Step 3: Cross multiply
    14,333.78x = 21,500.69 × 3,945.53
  4. Step 4: Simplify right side
    14,333.78x = 84,831,617.42
  5. Step 5: Solve for x
    x = 84,831,617.42/14,333.78
  6. Step 6: Final answer
    x = 5,918.30

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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.