Home / 30,237.89-41,728.19-16,810.40

Finding the Fourth Proportional to 30,237.89, 41,728.19 and 16,810.40

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Solution

The fourth proportional to 30,237.89, 41,728.19 and 16,810.40 is: 23,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.89 : 41,728.19 = 16,810.40 : x
  2. Step 2: Convert to fraction form
    30,237.89/41,728.19 = 16,810.40/x
  3. Step 3: Cross multiply
    30,237.89x = 41,728.19 × 16,810.40
  4. Step 4: Simplify right side
    30,237.89x = 701,467,456.68
  5. Step 5: Solve for x
    x = 701,467,456.68/30,237.89
  6. Step 6: Final answer
    x = 23,198.29

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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.