Home / 18,307.20-27,428.40-16,233.60

Finding the Fourth Proportional to 18,307.20, 27,428.40 and 16,233.60

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Solution

The fourth proportional to 18,307.20, 27,428.40 and 16,233.60 is: 24,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.20 : 27,428.40 = 16,233.60 : x
  2. Step 2: Convert to fraction form
    18,307.20/27,428.40 = 16,233.60/x
  3. Step 3: Cross multiply
    18,307.20x = 27,428.40 × 16,233.60
  4. Step 4: Simplify right side
    18,307.20x = 445,261,674.24
  5. Step 5: Solve for x
    x = 445,261,674.24/18,307.20
  6. Step 6: Final answer
    x = 24,321.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.