Home / 20,737.44-28,620.63-11,783.16

Finding the Fourth Proportional to 20,737.44, 28,620.63 and 11,783.16

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Solution

The fourth proportional to 20,737.44, 28,620.63 and 11,783.16 is: 16,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.44 : 28,620.63 = 11,783.16 : x
  2. Step 2: Convert to fraction form
    20,737.44/28,620.63 = 11,783.16/x
  3. Step 3: Cross multiply
    20,737.44x = 28,620.63 × 11,783.16
  4. Step 4: Simplify right side
    20,737.44x = 337,241,462.59
  5. Step 5: Solve for x
    x = 337,241,462.59/20,737.44
  6. Step 6: Final answer
    x = 16,262.44

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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.