Home / 30,940.78-46,306.05-19,102.09

Finding the Fourth Proportional to 30,940.78, 46,306.05 and 19,102.09

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Solution

The fourth proportional to 30,940.78, 46,306.05 and 19,102.09 is: 28,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.78 : 46,306.05 = 19,102.09 : x
  2. Step 2: Convert to fraction form
    30,940.78/46,306.05 = 19,102.09/x
  3. Step 3: Cross multiply
    30,940.78x = 46,306.05 × 19,102.09
  4. Step 4: Simplify right side
    30,940.78x = 884,542,334.64
  5. Step 5: Solve for x
    x = 884,542,334.64/30,940.78
  6. Step 6: Final answer
    x = 28,588.24

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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.