Home / 19,968.65-27,561.53-12,009.33

Finding the Fourth Proportional to 19,968.65, 27,561.53 and 12,009.33

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Solution

The fourth proportional to 19,968.65, 27,561.53 and 12,009.33 is: 16,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.65 : 27,561.53 = 12,009.33 : x
  2. Step 2: Convert to fraction form
    19,968.65/27,561.53 = 12,009.33/x
  3. Step 3: Cross multiply
    19,968.65x = 27,561.53 × 12,009.33
  4. Step 4: Simplify right side
    19,968.65x = 330,995,449.03
  5. Step 5: Solve for x
    x = 330,995,449.03/19,968.65
  6. Step 6: Final answer
    x = 16,575.76

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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.