Home / 20,153.33-27,828.38-16,813.65

Finding the Fourth Proportional to 20,153.33, 27,828.38 and 16,813.65

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Solution

The fourth proportional to 20,153.33, 27,828.38 and 16,813.65 is: 23,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.33 : 27,828.38 = 16,813.65 : x
  2. Step 2: Convert to fraction form
    20,153.33/27,828.38 = 16,813.65/x
  3. Step 3: Cross multiply
    20,153.33x = 27,828.38 × 16,813.65
  4. Step 4: Simplify right side
    20,153.33x = 467,896,641.39
  5. Step 5: Solve for x
    x = 467,896,641.39/20,153.33
  6. Step 6: Final answer
    x = 23,216.84

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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.