Home / 39,801.96-54,928.17-21,898.34

Finding the Fourth Proportional to 39,801.96, 54,928.17 and 21,898.34

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Solution

The fourth proportional to 39,801.96, 54,928.17 and 21,898.34 is: 30,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.96 : 54,928.17 = 21,898.34 : x
  2. Step 2: Convert to fraction form
    39,801.96/54,928.17 = 21,898.34/x
  3. Step 3: Cross multiply
    39,801.96x = 54,928.17 × 21,898.34
  4. Step 4: Simplify right side
    39,801.96x = 1,202,835,467.60
  5. Step 5: Solve for x
    x = 1,202,835,467.60/39,801.96
  6. Step 6: Final answer
    x = 30,220.51

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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.