Home / 28,544.03-39,428.42-21,911.62

Finding the Fourth Proportional to 28,544.03, 39,428.42 and 21,911.62

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Solution

The fourth proportional to 28,544.03, 39,428.42 and 21,911.62 is: 30,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.03 : 39,428.42 = 21,911.62 : x
  2. Step 2: Convert to fraction form
    28,544.03/39,428.42 = 21,911.62/x
  3. Step 3: Cross multiply
    28,544.03x = 39,428.42 × 21,911.62
  4. Step 4: Simplify right side
    28,544.03x = 863,940,348.11
  5. Step 5: Solve for x
    x = 863,940,348.11/28,544.03
  6. Step 6: Final answer
    x = 30,266.93

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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.