Home / 20,838.53-28,770.59-18,596.56

Finding the Fourth Proportional to 20,838.53, 28,770.59 and 18,596.56

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Solution

The fourth proportional to 20,838.53, 28,770.59 and 18,596.56 is: 25,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.53 : 28,770.59 = 18,596.56 : x
  2. Step 2: Convert to fraction form
    20,838.53/28,770.59 = 18,596.56/x
  3. Step 3: Cross multiply
    20,838.53x = 28,770.59 × 18,596.56
  4. Step 4: Simplify right side
    20,838.53x = 535,033,766.33
  5. Step 5: Solve for x
    x = 535,033,766.33/20,838.53
  6. Step 6: Final answer
    x = 25,675.22

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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.