Home / 28,447.54-39,249.11-18,366.77

Finding the Fourth Proportional to 28,447.54, 39,249.11 and 18,366.77

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Solution

The fourth proportional to 28,447.54, 39,249.11 and 18,366.77 is: 25,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.54 : 39,249.11 = 18,366.77 : x
  2. Step 2: Convert to fraction form
    28,447.54/39,249.11 = 18,366.77/x
  3. Step 3: Cross multiply
    28,447.54x = 39,249.11 × 18,366.77
  4. Step 4: Simplify right side
    28,447.54x = 720,879,520.11
  5. Step 5: Solve for x
    x = 720,879,520.11/28,447.54
  6. Step 6: Final answer
    x = 25,340.67

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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.