Home / 19,203.35-28,818.07-11,785.16

Finding the Fourth Proportional to 19,203.35, 28,818.07 and 11,785.16

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Solution

The fourth proportional to 19,203.35, 28,818.07 and 11,785.16 is: 17,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.35 : 28,818.07 = 11,785.16 : x
  2. Step 2: Convert to fraction form
    19,203.35/28,818.07 = 11,785.16/x
  3. Step 3: Cross multiply
    19,203.35x = 28,818.07 × 11,785.16
  4. Step 4: Simplify right side
    19,203.35x = 339,625,608.42
  5. Step 5: Solve for x
    x = 339,625,608.42/19,203.35
  6. Step 6: Final answer
    x = 17,685.75

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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.