Home / 20,845.48-31,268.38-6,055.40

Finding the Fourth Proportional to 20,845.48, 31,268.38 and 6,055.40

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Solution

The fourth proportional to 20,845.48, 31,268.38 and 6,055.40 is: 9,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.48 : 31,268.38 = 6,055.40 : x
  2. Step 2: Convert to fraction form
    20,845.48/31,268.38 = 6,055.40/x
  3. Step 3: Cross multiply
    20,845.48x = 31,268.38 × 6,055.40
  4. Step 4: Simplify right side
    20,845.48x = 189,342,548.25
  5. Step 5: Solve for x
    x = 189,342,548.25/20,845.48
  6. Step 6: Final answer
    x = 9,083.15

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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.