Home / 19,860.93-27,405.81-11,791.71

Finding the Fourth Proportional to 19,860.93, 27,405.81 and 11,791.71

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Solution

The fourth proportional to 19,860.93, 27,405.81 and 11,791.71 is: 16,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.93 : 27,405.81 = 11,791.71 : x
  2. Step 2: Convert to fraction form
    19,860.93/27,405.81 = 11,791.71/x
  3. Step 3: Cross multiply
    19,860.93x = 27,405.81 × 11,791.71
  4. Step 4: Simplify right side
    19,860.93x = 323,161,363.84
  5. Step 5: Solve for x
    x = 323,161,363.84/19,860.93
  6. Step 6: Final answer
    x = 16,271.21

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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.