Home / 38,789.86-53,529.87-21,794.55

Finding the Fourth Proportional to 38,789.86, 53,529.87 and 21,794.55

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Solution

The fourth proportional to 38,789.86, 53,529.87 and 21,794.55 is: 30,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,789.86 : 53,529.87 = 21,794.55 : x
  2. Step 2: Convert to fraction form
    38,789.86/53,529.87 = 21,794.55/x
  3. Step 3: Cross multiply
    38,789.86x = 53,529.87 × 21,794.55
  4. Step 4: Simplify right side
    38,789.86x = 1,166,659,428.21
  5. Step 5: Solve for x
    x = 1,166,659,428.21/38,789.86
  6. Step 6: Final answer
    x = 30,076.40

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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.