Home / 38,785.58-53,524.32-21,790.54

Finding the Fourth Proportional to 38,785.58, 53,524.32 and 21,790.54

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Solution

The fourth proportional to 38,785.58, 53,524.32 and 21,790.54 is: 30,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.58 : 53,524.32 = 21,790.54 : x
  2. Step 2: Convert to fraction form
    38,785.58/53,524.32 = 21,790.54/x
  3. Step 3: Cross multiply
    38,785.58x = 53,524.32 × 21,790.54
  4. Step 4: Simplify right side
    38,785.58x = 1,166,323,726.98
  5. Step 5: Solve for x
    x = 1,166,323,726.98/38,785.58
  6. Step 6: Final answer
    x = 30,071.07

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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.