Home / 19,905.36-27,469.80-10,953.60

Finding the Fourth Proportional to 19,905.36, 27,469.80 and 10,953.60

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Solution

The fourth proportional to 19,905.36, 27,469.80 and 10,953.60 is: 15,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.36 : 27,469.80 = 10,953.60 : x
  2. Step 2: Convert to fraction form
    19,905.36/27,469.80 = 10,953.60/x
  3. Step 3: Cross multiply
    19,905.36x = 27,469.80 × 10,953.60
  4. Step 4: Simplify right side
    19,905.36x = 300,893,201.28
  5. Step 5: Solve for x
    x = 300,893,201.28/19,905.36
  6. Step 6: Final answer
    x = 15,116.19

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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.