Home / 19,983.87-27,581.77-11,491.93

Finding the Fourth Proportional to 19,983.87, 27,581.77 and 11,491.93

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Solution

The fourth proportional to 19,983.87, 27,581.77 and 11,491.93 is: 15,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.87 : 27,581.77 = 11,491.93 : x
  2. Step 2: Convert to fraction form
    19,983.87/27,581.77 = 11,491.93/x
  3. Step 3: Cross multiply
    19,983.87x = 27,581.77 × 11,491.93
  4. Step 4: Simplify right side
    19,983.87x = 316,967,770.12
  5. Step 5: Solve for x
    x = 316,967,770.12/19,983.87
  6. Step 6: Final answer
    x = 15,861.18

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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.