Home / 30,171.84-41,635.26-18,228.12

Finding the Fourth Proportional to 30,171.84, 41,635.26 and 18,228.12

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Solution

The fourth proportional to 30,171.84, 41,635.26 and 18,228.12 is: 25,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.84 : 41,635.26 = 18,228.12 : x
  2. Step 2: Convert to fraction form
    30,171.84/41,635.26 = 18,228.12/x
  3. Step 3: Cross multiply
    30,171.84x = 41,635.26 × 18,228.12
  4. Step 4: Simplify right side
    30,171.84x = 758,932,515.51
  5. Step 5: Solve for x
    x = 758,932,515.51/30,171.84
  6. Step 6: Final answer
    x = 25,153.67

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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.