Home / 39,404.23-54,376.78-21,499.23

Finding the Fourth Proportional to 39,404.23, 54,376.78 and 21,499.23

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Solution

The fourth proportional to 39,404.23, 54,376.78 and 21,499.23 is: 29,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,404.23 : 54,376.78 = 21,499.23 : x
  2. Step 2: Convert to fraction form
    39,404.23/54,376.78 = 21,499.23/x
  3. Step 3: Cross multiply
    39,404.23x = 54,376.78 × 21,499.23
  4. Step 4: Simplify right side
    39,404.23x = 1,169,058,899.88
  5. Step 5: Solve for x
    x = 1,169,058,899.88/39,404.23
  6. Step 6: Final answer
    x = 29,668.36

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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.