Home / 19,629.90-27,089.37-11,670.57

Finding the Fourth Proportional to 19,629.90, 27,089.37 and 11,670.57

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Solution

The fourth proportional to 19,629.90, 27,089.37 and 11,670.57 is: 16,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.90 : 27,089.37 = 11,670.57 : x
  2. Step 2: Convert to fraction form
    19,629.90/27,089.37 = 11,670.57/x
  3. Step 3: Cross multiply
    19,629.90x = 27,089.37 × 11,670.57
  4. Step 4: Simplify right side
    19,629.90x = 316,148,388.84
  5. Step 5: Solve for x
    x = 316,148,388.84/19,629.90
  6. Step 6: Final answer
    x = 16,105.45

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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.