Home / 34,921.45-48,190.69-20,388.42

Finding the Fourth Proportional to 34,921.45, 48,190.69 and 20,388.42

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Solution

The fourth proportional to 34,921.45, 48,190.69 and 20,388.42 is: 28,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,921.45 : 48,190.69 = 20,388.42 : x
  2. Step 2: Convert to fraction form
    34,921.45/48,190.69 = 20,388.42/x
  3. Step 3: Cross multiply
    34,921.45x = 48,190.69 × 20,388.42
  4. Step 4: Simplify right side
    34,921.45x = 982,532,027.81
  5. Step 5: Solve for x
    x = 982,532,027.81/34,921.45
  6. Step 6: Final answer
    x = 28,135.49

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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.