Home / 20,633.94-28,474.91-11,202.49

Finding the Fourth Proportional to 20,633.94, 28,474.91 and 11,202.49

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Solution

The fourth proportional to 20,633.94, 28,474.91 and 11,202.49 is: 15,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.94 : 28,474.91 = 11,202.49 : x
  2. Step 2: Convert to fraction form
    20,633.94/28,474.91 = 11,202.49/x
  3. Step 3: Cross multiply
    20,633.94x = 28,474.91 × 11,202.49
  4. Step 4: Simplify right side
    20,633.94x = 318,989,894.53
  5. Step 5: Solve for x
    x = 318,989,894.53/20,633.94
  6. Step 6: Final answer
    x = 15,459.48

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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.