Home / 19,914.81-27,480.93-11,416.85

Finding the Fourth Proportional to 19,914.81, 27,480.93 and 11,416.85

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Solution

The fourth proportional to 19,914.81, 27,480.93 and 11,416.85 is: 15,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,914.81 : 27,480.93 = 11,416.85 : x
  2. Step 2: Convert to fraction form
    19,914.81/27,480.93 = 11,416.85/x
  3. Step 3: Cross multiply
    19,914.81x = 27,480.93 × 11,416.85
  4. Step 4: Simplify right side
    19,914.81x = 313,745,598.59
  5. Step 5: Solve for x
    x = 313,745,598.59/19,914.81
  6. Step 6: Final answer
    x = 15,754.39

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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.