Home / 20,074.32-27,699.73-11,122.35

Finding the Fourth Proportional to 20,074.32, 27,699.73 and 11,122.35

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Solution

The fourth proportional to 20,074.32, 27,699.73 and 11,122.35 is: 15,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.32 : 27,699.73 = 11,122.35 : x
  2. Step 2: Convert to fraction form
    20,074.32/27,699.73 = 11,122.35/x
  3. Step 3: Cross multiply
    20,074.32x = 27,699.73 × 11,122.35
  4. Step 4: Simplify right side
    20,074.32x = 308,086,091.97
  5. Step 5: Solve for x
    x = 308,086,091.97/20,074.32
  6. Step 6: Final answer
    x = 15,347.27

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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.