Home / 20,262.93-27,975.66-13,900.17

Finding the Fourth Proportional to 20,262.93, 27,975.66 and 13,900.17

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Solution

The fourth proportional to 20,262.93, 27,975.66 and 13,900.17 is: 19,191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.93 : 27,975.66 = 13,900.17 : x
  2. Step 2: Convert to fraction form
    20,262.93/27,975.66 = 13,900.17/x
  3. Step 3: Cross multiply
    20,262.93x = 27,975.66 × 13,900.17
  4. Step 4: Simplify right side
    20,262.93x = 388,866,429.86
  5. Step 5: Solve for x
    x = 388,866,429.86/20,262.93
  6. Step 6: Final answer
    x = 19,191.03

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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.