Home / 27,277.32-37,479.57-21,678.60

Finding the Fourth Proportional to 27,277.32, 37,479.57 and 21,678.60

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Solution

The fourth proportional to 27,277.32, 37,479.57 and 21,678.60 is: 29,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,277.32 : 37,479.57 = 21,678.60 : x
  2. Step 2: Convert to fraction form
    27,277.32/37,479.57 = 21,678.60/x
  3. Step 3: Cross multiply
    27,277.32x = 37,479.57 × 21,678.60
  4. Step 4: Simplify right side
    27,277.32x = 812,504,606.20
  5. Step 5: Solve for x
    x = 812,504,606.20/27,277.32
  6. Step 6: Final answer
    x = 29,786.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.