Home / 27,918.29-38,533.31-17,172.39

Finding the Fourth Proportional to 27,918.29, 38,533.31 and 17,172.39

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Solution

The fourth proportional to 27,918.29, 38,533.31 and 17,172.39 is: 23,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.29 : 38,533.31 = 17,172.39 : x
  2. Step 2: Convert to fraction form
    27,918.29/38,533.31 = 17,172.39/x
  3. Step 3: Cross multiply
    27,918.29x = 38,533.31 × 17,172.39
  4. Step 4: Simplify right side
    27,918.29x = 661,708,941.45
  5. Step 5: Solve for x
    x = 661,708,941.45/27,918.29
  6. Step 6: Final answer
    x = 23,701.63

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Why These Related Problems?

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