Home / 21,719.93-29,958.05-19,933.18

Finding the Fourth Proportional to 21,719.93, 29,958.05 and 19,933.18

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Solution

The fourth proportional to 21,719.93, 29,958.05 and 19,933.18 is: 27,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.93 : 29,958.05 = 19,933.18 : x
  2. Step 2: Convert to fraction form
    21,719.93/29,958.05 = 19,933.18/x
  3. Step 3: Cross multiply
    21,719.93x = 29,958.05 × 19,933.18
  4. Step 4: Simplify right side
    21,719.93x = 597,159,103.43
  5. Step 5: Solve for x
    x = 597,159,103.43/21,719.93
  6. Step 6: Final answer
    x = 27,493.60

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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.