Home / 30,395.51-41,942.79-16,782.68

Finding the Fourth Proportional to 30,395.51, 41,942.79 and 16,782.68

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Solution

The fourth proportional to 30,395.51, 41,942.79 and 16,782.68 is: 23,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.51 : 41,942.79 = 16,782.68 : x
  2. Step 2: Convert to fraction form
    30,395.51/41,942.79 = 16,782.68/x
  3. Step 3: Cross multiply
    30,395.51x = 41,942.79 × 16,782.68
  4. Step 4: Simplify right side
    30,395.51x = 703,912,213.16
  5. Step 5: Solve for x
    x = 703,912,213.16/30,395.51
  6. Step 6: Final answer
    x = 23,158.43

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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.