Home / 19,828.86-27,353.45-11,757.81

Finding the Fourth Proportional to 19,828.86, 27,353.45 and 11,757.81

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Solution

The fourth proportional to 19,828.86, 27,353.45 and 11,757.81 is: 16,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.86 : 27,353.45 = 11,757.81 : x
  2. Step 2: Convert to fraction form
    19,828.86/27,353.45 = 11,757.81/x
  3. Step 3: Cross multiply
    19,828.86x = 27,353.45 × 11,757.81
  4. Step 4: Simplify right side
    19,828.86x = 321,616,667.94
  5. Step 5: Solve for x
    x = 321,616,667.94/19,828.86
  6. Step 6: Final answer
    x = 16,219.62

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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.