Home / 30,375.36-41,917.86-16,945.81

Finding the Fourth Proportional to 30,375.36, 41,917.86 and 16,945.81

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Solution

The fourth proportional to 30,375.36, 41,917.86 and 16,945.81 is: 23,385.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.36 : 41,917.86 = 16,945.81 : x
  2. Step 2: Convert to fraction form
    30,375.36/41,917.86 = 16,945.81/x
  3. Step 3: Cross multiply
    30,375.36x = 41,917.86 × 16,945.81
  4. Step 4: Simplify right side
    30,375.36x = 710,331,986.37
  5. Step 5: Solve for x
    x = 710,331,986.37/30,375.36
  6. Step 6: Final answer
    x = 23,385.14

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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.