Home / 39,919.26-59,918.29-21,199.25

Finding the Fourth Proportional to 39,919.26, 59,918.29 and 21,199.25

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Solution

The fourth proportional to 39,919.26, 59,918.29 and 21,199.25 is: 31,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.26 : 59,918.29 = 21,199.25 : x
  2. Step 2: Convert to fraction form
    39,919.26/59,918.29 = 21,199.25/x
  3. Step 3: Cross multiply
    39,919.26x = 59,918.29 × 21,199.25
  4. Step 4: Simplify right side
    39,919.26x = 1,270,222,809.28
  5. Step 5: Solve for x
    x = 1,270,222,809.28/39,919.26
  6. Step 6: Final answer
    x = 31,819.80

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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.