Home / 28,408.92-39,203.52-16,309.04

Finding the Fourth Proportional to 28,408.92, 39,203.52 and 16,309.04

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Solution

The fourth proportional to 28,408.92, 39,203.52 and 16,309.04 is: 22,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.92 : 39,203.52 = 16,309.04 : x
  2. Step 2: Convert to fraction form
    28,408.92/39,203.52 = 16,309.04/x
  3. Step 3: Cross multiply
    28,408.92x = 39,203.52 × 16,309.04
  4. Step 4: Simplify right side
    28,408.92x = 639,371,775.82
  5. Step 5: Solve for x
    x = 639,371,775.82/28,408.92
  6. Step 6: Final answer
    x = 22,506.02

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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.