Home / 28,661.43-39,552.26-15,914.67

Finding the Fourth Proportional to 28,661.43, 39,552.26 and 15,914.67

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Solution

The fourth proportional to 28,661.43, 39,552.26 and 15,914.67 is: 21,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.43 : 39,552.26 = 15,914.67 : x
  2. Step 2: Convert to fraction form
    28,661.43/39,552.26 = 15,914.67/x
  3. Step 3: Cross multiply
    28,661.43x = 39,552.26 × 15,914.67
  4. Step 4: Simplify right side
    28,661.43x = 629,461,165.65
  5. Step 5: Solve for x
    x = 629,461,165.65/28,661.43
  6. Step 6: Final answer
    x = 21,961.96

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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.