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Finding the Fourth Proportional to 30,395.45, 41,946.39 and 16,783.45

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Solution

The fourth proportional to 30,395.45, 41,946.39 and 16,783.45 is: 23,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.45 : 41,946.39 = 16,783.45 : x
  2. Step 2: Convert to fraction form
    30,395.45/41,946.39 = 16,783.45/x
  3. Step 3: Cross multiply
    30,395.45x = 41,946.39 × 16,783.45
  4. Step 4: Simplify right side
    30,395.45x = 704,005,055.33
  5. Step 5: Solve for x
    x = 704,005,055.33/30,395.45
  6. Step 6: Final answer
    x = 23,161.53

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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.