Home / 28,763.09-39,695.74-16,825.67

Finding the Fourth Proportional to 28,763.09, 39,695.74 and 16,825.67

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Solution

The fourth proportional to 28,763.09, 39,695.74 and 16,825.67 is: 23,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.09 : 39,695.74 = 16,825.67 : x
  2. Step 2: Convert to fraction form
    28,763.09/39,695.74 = 16,825.67/x
  3. Step 3: Cross multiply
    28,763.09x = 39,695.74 × 16,825.67
  4. Step 4: Simplify right side
    28,763.09x = 667,907,421.65
  5. Step 5: Solve for x
    x = 667,907,421.65/28,763.09
  6. Step 6: Final answer
    x = 23,220.99

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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.