Home / 27,917.36-38,525.72-15,342.32

Finding the Fourth Proportional to 27,917.36, 38,525.72 and 15,342.32

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Solution

The fourth proportional to 27,917.36, 38,525.72 and 15,342.32 is: 21,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.36 : 38,525.72 = 15,342.32 : x
  2. Step 2: Convert to fraction form
    27,917.36/38,525.72 = 15,342.32/x
  3. Step 3: Cross multiply
    27,917.36x = 38,525.72 × 15,342.32
  4. Step 4: Simplify right side
    27,917.36x = 591,073,924.47
  5. Step 5: Solve for x
    x = 591,073,924.47/27,917.36
  6. Step 6: Final answer
    x = 21,172.27

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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.