Home / 30,277.70-41,784.21-18,943.58

Finding the Fourth Proportional to 30,277.70, 41,784.21 and 18,943.58

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Solution

The fourth proportional to 30,277.70, 41,784.21 and 18,943.58 is: 26,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.70 : 41,784.21 = 18,943.58 : x
  2. Step 2: Convert to fraction form
    30,277.70/41,784.21 = 18,943.58/x
  3. Step 3: Cross multiply
    30,277.70x = 41,784.21 × 18,943.58
  4. Step 4: Simplify right side
    30,277.70x = 791,542,524.87
  5. Step 5: Solve for x
    x = 791,542,524.87/30,277.70
  6. Step 6: Final answer
    x = 26,142.76

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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.