Home / 19,975.69-27,561.52-12,212.55

Finding the Fourth Proportional to 19,975.69, 27,561.52 and 12,212.55

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Solution

The fourth proportional to 19,975.69, 27,561.52 and 12,212.55 is: 16,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.69 : 27,561.52 = 12,212.55 : x
  2. Step 2: Convert to fraction form
    19,975.69/27,561.52 = 12,212.55/x
  3. Step 3: Cross multiply
    19,975.69x = 27,561.52 × 12,212.55
  4. Step 4: Simplify right side
    19,975.69x = 336,596,441.08
  5. Step 5: Solve for x
    x = 336,596,441.08/19,975.69
  6. Step 6: Final answer
    x = 16,850.30

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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.