Home / 38,994.86-53,808.35-21,999.37

Finding the Fourth Proportional to 38,994.86, 53,808.35 and 21,999.37

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Solution

The fourth proportional to 38,994.86, 53,808.35 and 21,999.37 is: 30,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,994.86 : 53,808.35 = 21,999.37 : x
  2. Step 2: Convert to fraction form
    38,994.86/53,808.35 = 21,999.37/x
  3. Step 3: Cross multiply
    38,994.86x = 53,808.35 × 21,999.37
  4. Step 4: Simplify right side
    38,994.86x = 1,183,749,855.74
  5. Step 5: Solve for x
    x = 1,183,749,855.74/38,994.86
  6. Step 6: Final answer
    x = 30,356.56

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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.