Home / 20,600.84-28,427.46-11,649.26

Finding the Fourth Proportional to 20,600.84, 28,427.46 and 11,649.26

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Solution

The fourth proportional to 20,600.84, 28,427.46 and 11,649.26 is: 16,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.84 : 28,427.46 = 11,649.26 : x
  2. Step 2: Convert to fraction form
    20,600.84/28,427.46 = 11,649.26/x
  3. Step 3: Cross multiply
    20,600.84x = 28,427.46 × 11,649.26
  4. Step 4: Simplify right side
    20,600.84x = 331,158,872.68
  5. Step 5: Solve for x
    x = 331,158,872.68/20,600.84
  6. Step 6: Final answer
    x = 16,075.02

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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.