Home / 19,682.69-27,171.81-13,637.52

Finding the Fourth Proportional to 19,682.69, 27,171.81 and 13,637.52

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Solution

The fourth proportional to 19,682.69, 27,171.81 and 13,637.52 is: 18,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682.69 : 27,171.81 = 13,637.52 : x
  2. Step 2: Convert to fraction form
    19,682.69/27,171.81 = 13,637.52/x
  3. Step 3: Cross multiply
    19,682.69x = 27,171.81 × 13,637.52
  4. Step 4: Simplify right side
    19,682.69x = 370,555,898.26
  5. Step 5: Solve for x
    x = 370,555,898.26/19,682.69
  6. Step 6: Final answer
    x = 18,826.49

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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.