Home / 28,535.92-39,379.71-15,960.67

Finding the Fourth Proportional to 28,535.92, 39,379.71 and 15,960.67

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Solution

The fourth proportional to 28,535.92, 39,379.71 and 15,960.67 is: 22,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.92 : 39,379.71 = 15,960.67 : x
  2. Step 2: Convert to fraction form
    28,535.92/39,379.71 = 15,960.67/x
  3. Step 3: Cross multiply
    28,535.92x = 39,379.71 × 15,960.67
  4. Step 4: Simplify right side
    28,535.92x = 628,526,556.01
  5. Step 5: Solve for x
    x = 628,526,556.01/28,535.92
  6. Step 6: Final answer
    x = 22,025.80

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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.