Home / 35,782.31-49,381.11-19,866.75

Finding the Fourth Proportional to 35,782.31, 49,381.11 and 19,866.75

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Solution

The fourth proportional to 35,782.31, 49,381.11 and 19,866.75 is: 27,416.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,782.31 : 49,381.11 = 19,866.75 : x
  2. Step 2: Convert to fraction form
    35,782.31/49,381.11 = 19,866.75/x
  3. Step 3: Cross multiply
    35,782.31x = 49,381.11 × 19,866.75
  4. Step 4: Simplify right side
    35,782.31x = 981,042,167.09
  5. Step 5: Solve for x
    x = 981,042,167.09/35,782.31
  6. Step 6: Final answer
    x = 27,416.96

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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.