Home / 19,863.90-27,443.61-18,289.26

Finding the Fourth Proportional to 19,863.90, 27,443.61 and 18,289.26

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Solution

The fourth proportional to 19,863.90, 27,443.61 and 18,289.26 is: 25,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.90 : 27,443.61 = 18,289.26 : x
  2. Step 2: Convert to fraction form
    19,863.90/27,443.61 = 18,289.26/x
  3. Step 3: Cross multiply
    19,863.90x = 27,443.61 × 18,289.26
  4. Step 4: Simplify right side
    19,863.90x = 501,923,318.63
  5. Step 5: Solve for x
    x = 501,923,318.63/19,863.90
  6. Step 6: Final answer
    x = 25,268.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.