Home / 20,142.63-27,789.08-14,850.03

Finding the Fourth Proportional to 20,142.63, 27,789.08 and 14,850.03

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Solution

The fourth proportional to 20,142.63, 27,789.08 and 14,850.03 is: 20,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.63 : 27,789.08 = 14,850.03 : x
  2. Step 2: Convert to fraction form
    20,142.63/27,789.08 = 14,850.03/x
  3. Step 3: Cross multiply
    20,142.63x = 27,789.08 × 14,850.03
  4. Step 4: Simplify right side
    20,142.63x = 412,668,597.42
  5. Step 5: Solve for x
    x = 412,668,597.42/20,142.63
  6. Step 6: Final answer
    x = 20,487.32

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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.