Home / 20,237.88-27,940.14-12,795.96

Finding the Fourth Proportional to 20,237.88, 27,940.14 and 12,795.96

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Solution

The fourth proportional to 20,237.88, 27,940.14 and 12,795.96 is: 17,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.88 : 27,940.14 = 12,795.96 : x
  2. Step 2: Convert to fraction form
    20,237.88/27,940.14 = 12,795.96/x
  3. Step 3: Cross multiply
    20,237.88x = 27,940.14 × 12,795.96
  4. Step 4: Simplify right side
    20,237.88x = 357,520,913.83
  5. Step 5: Solve for x
    x = 357,520,913.83/20,237.88
  6. Step 6: Final answer
    x = 17,665.93

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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.