Home / 25,982.16-35,858.16-15,917.28

Finding the Fourth Proportional to 25,982.16, 35,858.16 and 15,917.28

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Solution

The fourth proportional to 25,982.16, 35,858.16 and 15,917.28 is: 21,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.16 : 35,858.16 = 15,917.28 : x
  2. Step 2: Convert to fraction form
    25,982.16/35,858.16 = 15,917.28/x
  3. Step 3: Cross multiply
    25,982.16x = 35,858.16 × 15,917.28
  4. Step 4: Simplify right side
    25,982.16x = 570,764,373.00
  5. Step 5: Solve for x
    x = 570,764,373.00/25,982.16
  6. Step 6: Final answer
    x = 21,967.55

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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.