Home / 22,273.14-30,739.68-13,779.30

Finding the Fourth Proportional to 22,273.14, 30,739.68 and 13,779.30

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Solution

The fourth proportional to 22,273.14, 30,739.68 and 13,779.30 is: 19,017.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,273.14 : 30,739.68 = 13,779.30 : x
  2. Step 2: Convert to fraction form
    22,273.14/30,739.68 = 13,779.30/x
  3. Step 3: Cross multiply
    22,273.14x = 30,739.68 × 13,779.30
  4. Step 4: Simplify right side
    22,273.14x = 423,571,272.62
  5. Step 5: Solve for x
    x = 423,571,272.62/22,273.14
  6. Step 6: Final answer
    x = 19,017.13

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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.