Home / 19,975.82-27,577.68-12,020

Finding the Fourth Proportional to 19,975.82, 27,577.68 and 12,020

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Solution

The fourth proportional to 19,975.82, 27,577.68 and 12,020 is: 16,594.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.82 : 27,577.68 = 12,020 : x
  2. Step 2: Convert to fraction form
    19,975.82/27,577.68 = 12,020/x
  3. Step 3: Cross multiply
    19,975.82x = 27,577.68 × 12,020
  4. Step 4: Simplify right side
    19,975.82x = 331,483,713.60
  5. Step 5: Solve for x
    x = 331,483,713.60/19,975.82
  6. Step 6: Final answer
    x = 16,594.25

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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.