Home / 19,986.48-27,582.21-11,491.34

Finding the Fourth Proportional to 19,986.48, 27,582.21 and 11,491.34

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Solution

The fourth proportional to 19,986.48, 27,582.21 and 11,491.34 is: 15,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.48 : 27,582.21 = 11,491.34 : x
  2. Step 2: Convert to fraction form
    19,986.48/27,582.21 = 11,491.34/x
  3. Step 3: Cross multiply
    19,986.48x = 27,582.21 × 11,491.34
  4. Step 4: Simplify right side
    19,986.48x = 316,956,415.15
  5. Step 5: Solve for x
    x = 316,956,415.15/19,986.48
  6. Step 6: Final answer
    x = 15,858.54

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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.