Home / 28,486.36-39,277.82-19,417.09

Finding the Fourth Proportional to 28,486.36, 39,277.82 and 19,417.09

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Solution

The fourth proportional to 28,486.36, 39,277.82 and 19,417.09 is: 26,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.36 : 39,277.82 = 19,417.09 : x
  2. Step 2: Convert to fraction form
    28,486.36/39,277.82 = 19,417.09/x
  3. Step 3: Cross multiply
    28,486.36x = 39,277.82 × 19,417.09
  4. Step 4: Simplify right side
    28,486.36x = 762,660,806.24
  5. Step 5: Solve for x
    x = 762,660,806.24/28,486.36
  6. Step 6: Final answer
    x = 26,772.85

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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.