Home / 28,930.05-43,338.11-19,039.34

Finding the Fourth Proportional to 28,930.05, 43,338.11 and 19,039.34

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Solution

The fourth proportional to 28,930.05, 43,338.11 and 19,039.34 is: 28,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.05 : 43,338.11 = 19,039.34 : x
  2. Step 2: Convert to fraction form
    28,930.05/43,338.11 = 19,039.34/x
  3. Step 3: Cross multiply
    28,930.05x = 43,338.11 × 19,039.34
  4. Step 4: Simplify right side
    28,930.05x = 825,128,699.36
  5. Step 5: Solve for x
    x = 825,128,699.36/28,930.05
  6. Step 6: Final answer
    x = 28,521.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.