Home / 19,039.70-28,537.47-11,255.06

Finding the Fourth Proportional to 19,039.70, 28,537.47 and 11,255.06

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Solution

The fourth proportional to 19,039.70, 28,537.47 and 11,255.06 is: 16,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.70 : 28,537.47 = 11,255.06 : x
  2. Step 2: Convert to fraction form
    19,039.70/28,537.47 = 11,255.06/x
  3. Step 3: Cross multiply
    19,039.70x = 28,537.47 × 11,255.06
  4. Step 4: Simplify right side
    19,039.70x = 321,190,937.10
  5. Step 5: Solve for x
    x = 321,190,937.10/19,039.70
  6. Step 6: Final answer
    x = 16,869.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.