Home / 38,525.75-53,165.54-20,861.75

Finding the Fourth Proportional to 38,525.75, 53,165.54 and 20,861.75

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Solution

The fourth proportional to 38,525.75, 53,165.54 and 20,861.75 is: 28,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,525.75 : 53,165.54 = 20,861.75 : x
  2. Step 2: Convert to fraction form
    38,525.75/53,165.54 = 20,861.75/x
  3. Step 3: Cross multiply
    38,525.75x = 53,165.54 × 20,861.75
  4. Step 4: Simplify right side
    38,525.75x = 1,109,126,099.79
  5. Step 5: Solve for x
    x = 1,109,126,099.79/38,525.75
  6. Step 6: Final answer
    x = 28,789.22

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Similar ratio
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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.