Home / 18,930.24-28,366.56-16,971.84

Finding the Fourth Proportional to 18,930.24, 28,366.56 and 16,971.84

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Solution

The fourth proportional to 18,930.24, 28,366.56 and 16,971.84 is: 25,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.24 : 28,366.56 = 16,971.84 : x
  2. Step 2: Convert to fraction form
    18,930.24/28,366.56 = 16,971.84/x
  3. Step 3: Cross multiply
    18,930.24x = 28,366.56 × 16,971.84
  4. Step 4: Simplify right side
    18,930.24x = 481,432,717.67
  5. Step 5: Solve for x
    x = 481,432,717.67/18,930.24
  6. Step 6: Final answer
    x = 25,431.94

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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.