Home / 19,860.36-27,400.58-11,356.42

Finding the Fourth Proportional to 19,860.36, 27,400.58 and 11,356.42

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Solution

The fourth proportional to 19,860.36, 27,400.58 and 11,356.42 is: 15,668.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.36 : 27,400.58 = 11,356.42 : x
  2. Step 2: Convert to fraction form
    19,860.36/27,400.58 = 11,356.42/x
  3. Step 3: Cross multiply
    19,860.36x = 27,400.58 × 11,356.42
  4. Step 4: Simplify right side
    19,860.36x = 311,172,527.28
  5. Step 5: Solve for x
    x = 311,172,527.28/19,860.36
  6. Step 6: Final answer
    x = 15,668.02

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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.