Home / 19,853.10-27,393.39-11,892.42

Finding the Fourth Proportional to 19,853.10, 27,393.39 and 11,892.42

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Solution

The fourth proportional to 19,853.10, 27,393.39 and 11,892.42 is: 16,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.10 : 27,393.39 = 11,892.42 : x
  2. Step 2: Convert to fraction form
    19,853.10/27,393.39 = 11,892.42/x
  3. Step 3: Cross multiply
    19,853.10x = 27,393.39 × 11,892.42
  4. Step 4: Simplify right side
    19,853.10x = 325,773,699.10
  5. Step 5: Solve for x
    x = 325,773,699.10/19,853.10
  6. Step 6: Final answer
    x = 16,409.21

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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.