Home / 39,157.79-54,037.60-22,161.56

Finding the Fourth Proportional to 39,157.79, 54,037.60 and 22,161.56

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Solution

The fourth proportional to 39,157.79, 54,037.60 and 22,161.56 is: 30,582.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.79 : 54,037.60 = 22,161.56 : x
  2. Step 2: Convert to fraction form
    39,157.79/54,037.60 = 22,161.56/x
  3. Step 3: Cross multiply
    39,157.79x = 54,037.60 × 22,161.56
  4. Step 4: Simplify right side
    39,157.79x = 1,197,557,189.06
  5. Step 5: Solve for x
    x = 1,197,557,189.06/39,157.79
  6. Step 6: Final answer
    x = 30,582.86

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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.