Home / 19,975.53-27,561.31-12,212.38

Finding the Fourth Proportional to 19,975.53, 27,561.31 and 12,212.38

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Solution

The fourth proportional to 19,975.53, 27,561.31 and 12,212.38 is: 16,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.53 : 27,561.31 = 12,212.38 : x
  2. Step 2: Convert to fraction form
    19,975.53/27,561.31 = 12,212.38/x
  3. Step 3: Cross multiply
    19,975.53x = 27,561.31 × 12,212.38
  4. Step 4: Simplify right side
    19,975.53x = 336,589,191.02
  5. Step 5: Solve for x
    x = 336,589,191.02/19,975.53
  6. Step 6: Final answer
    x = 16,850.08

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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.