Home / 28,394.58-39,184.78-15,648.22

Finding the Fourth Proportional to 28,394.58, 39,184.78 and 15,648.22

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Solution

The fourth proportional to 28,394.58, 39,184.78 and 15,648.22 is: 21,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.58 : 39,184.78 = 15,648.22 : x
  2. Step 2: Convert to fraction form
    28,394.58/39,184.78 = 15,648.22/x
  3. Step 3: Cross multiply
    28,394.58x = 39,184.78 × 15,648.22
  4. Step 4: Simplify right side
    28,394.58x = 613,172,058.09
  5. Step 5: Solve for x
    x = 613,172,058.09/28,394.58
  6. Step 6: Final answer
    x = 21,594.69

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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.