Home / 19,900.96-27,288.68-19,382.56

Finding the Fourth Proportional to 19,900.96, 27,288.68 and 19,382.56

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Solution

The fourth proportional to 19,900.96, 27,288.68 and 19,382.56 is: 26,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.96 : 27,288.68 = 19,382.56 : x
  2. Step 2: Convert to fraction form
    19,900.96/27,288.68 = 19,382.56/x
  3. Step 3: Cross multiply
    19,900.96x = 27,288.68 × 19,382.56
  4. Step 4: Simplify right side
    19,900.96x = 528,924,477.42
  5. Step 5: Solve for x
    x = 528,924,477.42/19,900.96
  6. Step 6: Final answer
    x = 26,577.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.