Home / 39,189.24-54,081.54-21,284.40

Finding the Fourth Proportional to 39,189.24, 54,081.54 and 21,284.40

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Solution

The fourth proportional to 39,189.24, 54,081.54 and 21,284.40 is: 29,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.24 : 54,081.54 = 21,284.40 : x
  2. Step 2: Convert to fraction form
    39,189.24/54,081.54 = 21,284.40/x
  3. Step 3: Cross multiply
    39,189.24x = 54,081.54 × 21,284.40
  4. Step 4: Simplify right side
    39,189.24x = 1,151,093,129.98
  5. Step 5: Solve for x
    x = 1,151,093,129.98/39,189.24
  6. Step 6: Final answer
    x = 29,372.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.