Home / 19,268.95-28,905.34-5,229.20

Finding the Fourth Proportional to 19,268.95, 28,905.34 and 5,229.20

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Solution

The fourth proportional to 19,268.95, 28,905.34 and 5,229.20 is: 7,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.95 : 28,905.34 = 5,229.20 : x
  2. Step 2: Convert to fraction form
    19,268.95/28,905.34 = 5,229.20/x
  3. Step 3: Cross multiply
    19,268.95x = 28,905.34 × 5,229.20
  4. Step 4: Simplify right side
    19,268.95x = 151,151,659.40
  5. Step 5: Solve for x
    x = 151,151,659.40/19,268.95
  6. Step 6: Final answer
    x = 7,844.31

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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.