Home / 19,211.56-28,817.06-11,717.32

Finding the Fourth Proportional to 19,211.56, 28,817.06 and 11,717.32

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Solution

The fourth proportional to 19,211.56, 28,817.06 and 11,717.32 is: 17,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.56 : 28,817.06 = 11,717.32 : x
  2. Step 2: Convert to fraction form
    19,211.56/28,817.06 = 11,717.32/x
  3. Step 3: Cross multiply
    19,211.56x = 28,817.06 × 11,717.32
  4. Step 4: Simplify right side
    19,211.56x = 337,658,713.48
  5. Step 5: Solve for x
    x = 337,658,713.48/19,211.56
  6. Step 6: Final answer
    x = 17,575.81

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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.