Home / 20,101.99-27,736.74-12,144.23

Finding the Fourth Proportional to 20,101.99, 27,736.74 and 12,144.23

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Solution

The fourth proportional to 20,101.99, 27,736.74 and 12,144.23 is: 16,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.99 : 27,736.74 = 12,144.23 : x
  2. Step 2: Convert to fraction form
    20,101.99/27,736.74 = 12,144.23/x
  3. Step 3: Cross multiply
    20,101.99x = 27,736.74 × 12,144.23
  4. Step 4: Simplify right side
    20,101.99x = 336,841,332.42
  5. Step 5: Solve for x
    x = 336,841,332.42/20,101.99
  6. Step 6: Final answer
    x = 16,756.62

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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.