Home / 39,898.93-55,059.83-21,995.60

Finding the Fourth Proportional to 39,898.93, 55,059.83 and 21,995.60

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Solution

The fourth proportional to 39,898.93, 55,059.83 and 21,995.60 is: 30,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.93 : 55,059.83 = 21,995.60 : x
  2. Step 2: Convert to fraction form
    39,898.93/55,059.83 = 21,995.60/x
  3. Step 3: Cross multiply
    39,898.93x = 55,059.83 × 21,995.60
  4. Step 4: Simplify right side
    39,898.93x = 1,211,073,721.45
  5. Step 5: Solve for x
    x = 1,211,073,721.45/39,898.93
  6. Step 6: Final answer
    x = 30,353.54

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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.