Home / 30,512.78-45,845.85-19,424.42

Finding the Fourth Proportional to 30,512.78, 45,845.85 and 19,424.42

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Solution

The fourth proportional to 30,512.78, 45,845.85 and 19,424.42 is: 29,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,512.78 : 45,845.85 = 19,424.42 : x
  2. Step 2: Convert to fraction form
    30,512.78/45,845.85 = 19,424.42/x
  3. Step 3: Cross multiply
    30,512.78x = 45,845.85 × 19,424.42
  4. Step 4: Simplify right side
    30,512.78x = 890,529,045.66
  5. Step 5: Solve for x
    x = 890,529,045.66/30,512.78
  6. Step 6: Final answer
    x = 29,185.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.