Home / 25,777.09-38,659.32-18,838.84

Finding the Fourth Proportional to 25,777.09, 38,659.32 and 18,838.84

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Solution

The fourth proportional to 25,777.09, 38,659.32 and 18,838.84 is: 28,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.09 : 38,659.32 = 18,838.84 : x
  2. Step 2: Convert to fraction form
    25,777.09/38,659.32 = 18,838.84/x
  3. Step 3: Cross multiply
    25,777.09x = 38,659.32 × 18,838.84
  4. Step 4: Simplify right side
    25,777.09x = 728,296,743.99
  5. Step 5: Solve for x
    x = 728,296,743.99/25,777.09
  6. Step 6: Final answer
    x = 28,253.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.