Home / 19,578.25-27,040.41-12,893.76

Finding the Fourth Proportional to 19,578.25, 27,040.41 and 12,893.76

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Solution

The fourth proportional to 19,578.25, 27,040.41 and 12,893.76 is: 17,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.25 : 27,040.41 = 12,893.76 : x
  2. Step 2: Convert to fraction form
    19,578.25/27,040.41 = 12,893.76/x
  3. Step 3: Cross multiply
    19,578.25x = 27,040.41 × 12,893.76
  4. Step 4: Simplify right side
    19,578.25x = 348,652,556.84
  5. Step 5: Solve for x
    x = 348,652,556.84/19,578.25
  6. Step 6: Final answer
    x = 17,808.16

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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.