Home / 19,139.58-28,709.37-5,288.22

Finding the Fourth Proportional to 19,139.58, 28,709.37 and 5,288.22

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Solution

The fourth proportional to 19,139.58, 28,709.37 and 5,288.22 is: 7,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.58 : 28,709.37 = 5,288.22 : x
  2. Step 2: Convert to fraction form
    19,139.58/28,709.37 = 5,288.22/x
  3. Step 3: Cross multiply
    19,139.58x = 28,709.37 × 5,288.22
  4. Step 4: Simplify right side
    19,139.58x = 151,821,464.62
  5. Step 5: Solve for x
    x = 151,821,464.62/19,139.58
  6. Step 6: Final answer
    x = 7,932.33

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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.