Home / 14,049.75-21,075.59-4,689.39

Finding the Fourth Proportional to 14,049.75, 21,075.59 and 4,689.39

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Solution

The fourth proportional to 14,049.75, 21,075.59 and 4,689.39 is: 7,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.75 : 21,075.59 = 4,689.39 : x
  2. Step 2: Convert to fraction form
    14,049.75/21,075.59 = 4,689.39/x
  3. Step 3: Cross multiply
    14,049.75x = 21,075.59 × 4,689.39
  4. Step 4: Simplify right side
    14,049.75x = 98,831,751.75
  5. Step 5: Solve for x
    x = 98,831,751.75/14,049.75
  6. Step 6: Final answer
    x = 7,034.41

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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.