Home / 19,268.94-28,905.34-5,229.20

Finding the Fourth Proportional to 19,268.94, 28,905.34 and 5,229.20

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Solution

The fourth proportional to 19,268.94, 28,905.34 and 5,229.20 is: 7,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.94 : 28,905.34 = 5,229.20 : x
  2. Step 2: Convert to fraction form
    19,268.94/28,905.34 = 5,229.20/x
  3. Step 3: Cross multiply
    19,268.94x = 28,905.34 × 5,229.20
  4. Step 4: Simplify right side
    19,268.94x = 151,151,803.93
  5. Step 5: Solve for x
    x = 151,151,803.93/19,268.94
  6. Step 6: Final answer
    x = 7,844.32

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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.