Home / 30,400.23-41,919.24-19,770.15

Finding the Fourth Proportional to 30,400.23, 41,919.24 and 19,770.15

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Solution

The fourth proportional to 30,400.23, 41,919.24 and 19,770.15 is: 27,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.23 : 41,919.24 = 19,770.15 : x
  2. Step 2: Convert to fraction form
    30,400.23/41,919.24 = 19,770.15/x
  3. Step 3: Cross multiply
    30,400.23x = 41,919.24 × 19,770.15
  4. Step 4: Simplify right side
    30,400.23x = 828,749,662.69
  5. Step 5: Solve for x
    x = 828,749,662.69/30,400.23
  6. Step 6: Final answer
    x = 27,261.30

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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.