Home / 38,763.36-53,479.44-21,986.64

Finding the Fourth Proportional to 38,763.36, 53,479.44 and 21,986.64

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Solution

The fourth proportional to 38,763.36, 53,479.44 and 21,986.64 is: 30,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,763.36 : 53,479.44 = 21,986.64 : x
  2. Step 2: Convert to fraction form
    38,763.36/53,479.44 = 21,986.64/x
  3. Step 3: Cross multiply
    38,763.36x = 53,479.44 × 21,986.64
  4. Step 4: Simplify right side
    38,763.36x = 1,175,833,194.68
  5. Step 5: Solve for x
    x = 1,175,833,194.68/38,763.36
  6. Step 6: Final answer
    x = 30,333.62

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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.