Home / 38,910.76-53,621.94-28,283.56

Finding the Fourth Proportional to 38,910.76, 53,621.94 and 28,283.56

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Solution

The fourth proportional to 38,910.76, 53,621.94 and 28,283.56 is: 38,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910.76 : 53,621.94 = 28,283.56 : x
  2. Step 2: Convert to fraction form
    38,910.76/53,621.94 = 28,283.56/x
  3. Step 3: Cross multiply
    38,910.76x = 53,621.94 × 28,283.56
  4. Step 4: Simplify right side
    38,910.76x = 1,516,619,357.31
  5. Step 5: Solve for x
    x = 1,516,619,357.31/38,910.76
  6. Step 6: Final answer
    x = 38,976.86

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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.