Home / 30,365.97-41,905.26-16,938.09

Finding the Fourth Proportional to 30,365.97, 41,905.26 and 16,938.09

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Solution

The fourth proportional to 30,365.97, 41,905.26 and 16,938.09 is: 23,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.97 : 41,905.26 = 16,938.09 : x
  2. Step 2: Convert to fraction form
    30,365.97/41,905.26 = 16,938.09/x
  3. Step 3: Cross multiply
    30,365.97x = 41,905.26 × 16,938.09
  4. Step 4: Simplify right side
    30,365.97x = 709,795,065.35
  5. Step 5: Solve for x
    x = 709,795,065.35/30,365.97
  6. Step 6: Final answer
    x = 23,374.69

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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.