Home / 19,119.87-28,655.47-10,804.54

Finding the Fourth Proportional to 19,119.87, 28,655.47 and 10,804.54

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Solution

The fourth proportional to 19,119.87, 28,655.47 and 10,804.54 is: 16,193.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.87 : 28,655.47 = 10,804.54 : x
  2. Step 2: Convert to fraction form
    19,119.87/28,655.47 = 10,804.54/x
  3. Step 3: Cross multiply
    19,119.87x = 28,655.47 × 10,804.54
  4. Step 4: Simplify right side
    19,119.87x = 309,609,167.43
  5. Step 5: Solve for x
    x = 309,609,167.43/19,119.87
  6. Step 6: Final answer
    x = 16,193.06

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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.