Home / 19,690.49-27,172.86-10,738.01

Finding the Fourth Proportional to 19,690.49, 27,172.86 and 10,738.01

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Solution

The fourth proportional to 19,690.49, 27,172.86 and 10,738.01 is: 14,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.49 : 27,172.86 = 10,738.01 : x
  2. Step 2: Convert to fraction form
    19,690.49/27,172.86 = 10,738.01/x
  3. Step 3: Cross multiply
    19,690.49x = 27,172.86 × 10,738.01
  4. Step 4: Simplify right side
    19,690.49x = 291,782,442.41
  5. Step 5: Solve for x
    x = 291,782,442.41/19,690.49
  6. Step 6: Final answer
    x = 14,818.44

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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.