Home / 38,941.43-53,739.38-21,945.94

Finding the Fourth Proportional to 38,941.43, 53,739.38 and 21,945.94

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Solution

The fourth proportional to 38,941.43, 53,739.38 and 21,945.94 is: 30,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,941.43 : 53,739.38 = 21,945.94 : x
  2. Step 2: Convert to fraction form
    38,941.43/53,739.38 = 21,945.94/x
  3. Step 3: Cross multiply
    38,941.43x = 53,739.38 × 21,945.94
  4. Step 4: Simplify right side
    38,941.43x = 1,179,361,129.63
  5. Step 5: Solve for x
    x = 1,179,361,129.63/38,941.43
  6. Step 6: Final answer
    x = 30,285.52

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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.