Home / 19,743.76-29,629.48-11,412.31

Finding the Fourth Proportional to 19,743.76, 29,629.48 and 11,412.31

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Solution

The fourth proportional to 19,743.76, 29,629.48 and 11,412.31 is: 17,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.76 : 29,629.48 = 11,412.31 : x
  2. Step 2: Convert to fraction form
    19,743.76/29,629.48 = 11,412.31/x
  3. Step 3: Cross multiply
    19,743.76x = 29,629.48 × 11,412.31
  4. Step 4: Simplify right side
    19,743.76x = 338,140,810.90
  5. Step 5: Solve for x
    x = 338,140,810.90/19,743.76
  6. Step 6: Final answer
    x = 17,126.46

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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.