Home / 20,243.90-27,937.08-11,291.33

Finding the Fourth Proportional to 20,243.90, 27,937.08 and 11,291.33

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Solution

The fourth proportional to 20,243.90, 27,937.08 and 11,291.33 is: 15,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.90 : 27,937.08 = 11,291.33 : x
  2. Step 2: Convert to fraction form
    20,243.90/27,937.08 = 11,291.33/x
  3. Step 3: Cross multiply
    20,243.90x = 27,937.08 × 11,291.33
  4. Step 4: Simplify right side
    20,243.90x = 315,446,789.52
  5. Step 5: Solve for x
    x = 315,446,789.52/20,243.90
  6. Step 6: Final answer
    x = 15,582.31

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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.