Home / 28,268.08-42,409.24-19,964.36

Finding the Fourth Proportional to 28,268.08, 42,409.24 and 19,964.36

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Solution

The fourth proportional to 28,268.08, 42,409.24 and 19,964.36 is: 29,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.08 : 42,409.24 = 19,964.36 : x
  2. Step 2: Convert to fraction form
    28,268.08/42,409.24 = 19,964.36/x
  3. Step 3: Cross multiply
    28,268.08x = 42,409.24 × 19,964.36
  4. Step 4: Simplify right side
    28,268.08x = 846,673,390.80
  5. Step 5: Solve for x
    x = 846,673,390.80/28,268.08
  6. Step 6: Final answer
    x = 29,951.57

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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.