Home / 18,963.63-28,423.29-14,268.54

Finding the Fourth Proportional to 18,963.63, 28,423.29 and 14,268.54

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Solution

The fourth proportional to 18,963.63, 28,423.29 and 14,268.54 is: 21,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.63 : 28,423.29 = 14,268.54 : x
  2. Step 2: Convert to fraction form
    18,963.63/28,423.29 = 14,268.54/x
  3. Step 3: Cross multiply
    18,963.63x = 28,423.29 × 14,268.54
  4. Step 4: Simplify right side
    18,963.63x = 405,558,850.30
  5. Step 5: Solve for x
    x = 405,558,850.30/18,963.63
  6. Step 6: Final answer
    x = 21,386.14

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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.