Home / 19,985.32-29,939.82-11,193.64

Finding the Fourth Proportional to 19,985.32, 29,939.82 and 11,193.64

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Solution

The fourth proportional to 19,985.32, 29,939.82 and 11,193.64 is: 16,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.32 : 29,939.82 = 11,193.64 : x
  2. Step 2: Convert to fraction form
    19,985.32/29,939.82 = 11,193.64/x
  3. Step 3: Cross multiply
    19,985.32x = 29,939.82 × 11,193.64
  4. Step 4: Simplify right side
    19,985.32x = 335,135,566.74
  5. Step 5: Solve for x
    x = 335,135,566.74/19,985.32
  6. Step 6: Final answer
    x = 16,769.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.