Home / 21,768.43-30,055.77-16,993.69

Finding the Fourth Proportional to 21,768.43, 30,055.77 and 16,993.69

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Solution

The fourth proportional to 21,768.43, 30,055.77 and 16,993.69 is: 23,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.43 : 30,055.77 = 16,993.69 : x
  2. Step 2: Convert to fraction form
    21,768.43/30,055.77 = 16,993.69/x
  3. Step 3: Cross multiply
    21,768.43x = 30,055.77 × 16,993.69
  4. Step 4: Simplify right side
    21,768.43x = 510,758,438.09
  5. Step 5: Solve for x
    x = 510,758,438.09/21,768.43
  6. Step 6: Final answer
    x = 23,463.26

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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.