Home / 18,788.68-28,183-15,274.48

Finding the Fourth Proportional to 18,788.68, 28,183 and 15,274.48

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Solution

The fourth proportional to 18,788.68, 28,183 and 15,274.48 is: 22,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.68 : 28,183 = 15,274.48 : x
  2. Step 2: Convert to fraction form
    18,788.68/28,183 = 15,274.48/x
  3. Step 3: Cross multiply
    18,788.68x = 28,183 × 15,274.48
  4. Step 4: Simplify right side
    18,788.68x = 430,480,669.84
  5. Step 5: Solve for x
    x = 430,480,669.84/18,788.68
  6. Step 6: Final answer
    x = 22,911.70

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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.