Home / 20,153.58-27,804.57-12,192.90

Finding the Fourth Proportional to 20,153.58, 27,804.57 and 12,192.90

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Solution

The fourth proportional to 20,153.58, 27,804.57 and 12,192.90 is: 16,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.58 : 27,804.57 = 12,192.90 : x
  2. Step 2: Convert to fraction form
    20,153.58/27,804.57 = 12,192.90/x
  3. Step 3: Cross multiply
    20,153.58x = 27,804.57 × 12,192.90
  4. Step 4: Simplify right side
    20,153.58x = 339,018,191.56
  5. Step 5: Solve for x
    x = 339,018,191.56/20,153.58
  6. Step 6: Final answer
    x = 16,821.74

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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.