Home / 17,140.36-23,664.78-15,344.68

Finding the Fourth Proportional to 17,140.36, 23,664.78 and 15,344.68

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Solution

The fourth proportional to 17,140.36, 23,664.78 and 15,344.68 is: 21,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.36 : 23,664.78 = 15,344.68 : x
  2. Step 2: Convert to fraction form
    17,140.36/23,664.78 = 15,344.68/x
  3. Step 3: Cross multiply
    17,140.36x = 23,664.78 × 15,344.68
  4. Step 4: Simplify right side
    17,140.36x = 363,128,476.37
  5. Step 5: Solve for x
    x = 363,128,476.37/17,140.36
  6. Step 6: Final answer
    x = 21,185.58

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1.5x scale

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.