Home / 38,668.32-53,358.48-21,889.44

Finding the Fourth Proportional to 38,668.32, 53,358.48 and 21,889.44

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Solution

The fourth proportional to 38,668.32, 53,358.48 and 21,889.44 is: 30,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.32 : 53,358.48 = 21,889.44 : x
  2. Step 2: Convert to fraction form
    38,668.32/53,358.48 = 21,889.44/x
  3. Step 3: Cross multiply
    38,668.32x = 53,358.48 × 21,889.44
  4. Step 4: Simplify right side
    38,668.32x = 1,167,987,246.45
  5. Step 5: Solve for x
    x = 1,167,987,246.45/38,668.32
  6. Step 6: Final answer
    x = 30,205.28

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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.