Home / 30,274.21-41,771.86-18,338.05

Finding the Fourth Proportional to 30,274.21, 41,771.86 and 18,338.05

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Solution

The fourth proportional to 30,274.21, 41,771.86 and 18,338.05 is: 25,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.21 : 41,771.86 = 18,338.05 : x
  2. Step 2: Convert to fraction form
    30,274.21/41,771.86 = 18,338.05/x
  3. Step 3: Cross multiply
    30,274.21x = 41,771.86 × 18,338.05
  4. Step 4: Simplify right side
    30,274.21x = 766,014,457.27
  5. Step 5: Solve for x
    x = 766,014,457.27/30,274.21
  6. Step 6: Final answer
    x = 25,302.54

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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.