Home / 28,161.43-38,860.14-16,828.67

Finding the Fourth Proportional to 28,161.43, 38,860.14 and 16,828.67

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Solution

The fourth proportional to 28,161.43, 38,860.14 and 16,828.67 is: 23,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.43 : 38,860.14 = 16,828.67 : x
  2. Step 2: Convert to fraction form
    28,161.43/38,860.14 = 16,828.67/x
  3. Step 3: Cross multiply
    28,161.43x = 38,860.14 × 16,828.67
  4. Step 4: Simplify right side
    28,161.43x = 653,964,506.26
  5. Step 5: Solve for x
    x = 653,964,506.26/28,161.43
  6. Step 6: Final answer
    x = 23,221.99

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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.