Home / 19,668.32-27,144.48-11,710.56

Finding the Fourth Proportional to 19,668.32, 27,144.48 and 11,710.56

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Solution

The fourth proportional to 19,668.32, 27,144.48 and 11,710.56 is: 16,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.32 : 27,144.48 = 11,710.56 : x
  2. Step 2: Convert to fraction form
    19,668.32/27,144.48 = 11,710.56/x
  3. Step 3: Cross multiply
    19,668.32x = 27,144.48 × 11,710.56
  4. Step 4: Simplify right side
    19,668.32x = 317,877,061.71
  5. Step 5: Solve for x
    x = 317,877,061.71/19,668.32
  6. Step 6: Final answer
    x = 16,161.88

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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.