Home / 19,896.68-27,457.43-11,938.91

Finding the Fourth Proportional to 19,896.68, 27,457.43 and 11,938.91

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Solution

The fourth proportional to 19,896.68, 27,457.43 and 11,938.91 is: 16,475.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.68 : 27,457.43 = 11,938.91 : x
  2. Step 2: Convert to fraction form
    19,896.68/27,457.43 = 11,938.91/x
  3. Step 3: Cross multiply
    19,896.68x = 27,457.43 × 11,938.91
  4. Step 4: Simplify right side
    19,896.68x = 327,811,588.62
  5. Step 5: Solve for x
    x = 327,811,588.62/19,896.68
  6. Step 6: Final answer
    x = 16,475.69

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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.