Home / 19,759.59-27,255.76-13,789.08

Finding the Fourth Proportional to 19,759.59, 27,255.76 and 13,789.08

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Solution

The fourth proportional to 19,759.59, 27,255.76 and 13,789.08 is: 19,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.59 : 27,255.76 = 13,789.08 : x
  2. Step 2: Convert to fraction form
    19,759.59/27,255.76 = 13,789.08/x
  3. Step 3: Cross multiply
    19,759.59x = 27,255.76 × 13,789.08
  4. Step 4: Simplify right side
    19,759.59x = 375,831,770.13
  5. Step 5: Solve for x
    x = 375,831,770.13/19,759.59
  6. Step 6: Final answer
    x = 19,020.22

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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.