Home / 19,538.48-29,313.16-6,391.68

Finding the Fourth Proportional to 19,538.48, 29,313.16 and 6,391.68

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Solution

The fourth proportional to 19,538.48, 29,313.16 and 6,391.68 is: 9,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.48 : 29,313.16 = 6,391.68 : x
  2. Step 2: Convert to fraction form
    19,538.48/29,313.16 = 6,391.68/x
  3. Step 3: Cross multiply
    19,538.48x = 29,313.16 × 6,391.68
  4. Step 4: Simplify right side
    19,538.48x = 187,360,338.51
  5. Step 5: Solve for x
    x = 187,360,338.51/19,538.48
  6. Step 6: Final answer
    x = 9,589.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.