Home / 28,561.44-42,830.37-10,789.08

Finding the Fourth Proportional to 28,561.44, 42,830.37 and 10,789.08

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Solution

The fourth proportional to 28,561.44, 42,830.37 and 10,789.08 is: 16,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.44 : 42,830.37 = 10,789.08 : x
  2. Step 2: Convert to fraction form
    28,561.44/42,830.37 = 10,789.08/x
  3. Step 3: Cross multiply
    28,561.44x = 42,830.37 × 10,789.08
  4. Step 4: Simplify right side
    28,561.44x = 462,100,288.36
  5. Step 5: Solve for x
    x = 462,100,288.36/28,561.44
  6. Step 6: Final answer
    x = 16,179.17

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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.