Home / 38,646.56-53,330.73-21,879.56

Finding the Fourth Proportional to 38,646.56, 53,330.73 and 21,879.56

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Solution

The fourth proportional to 38,646.56, 53,330.73 and 21,879.56 is: 30,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.56 : 53,330.73 = 21,879.56 : x
  2. Step 2: Convert to fraction form
    38,646.56/53,330.73 = 21,879.56/x
  3. Step 3: Cross multiply
    38,646.56x = 53,330.73 × 21,879.56
  4. Step 4: Simplify right side
    38,646.56x = 1,166,852,906.88
  5. Step 5: Solve for x
    x = 1,166,852,906.88/38,646.56
  6. Step 6: Final answer
    x = 30,192.93

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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.