Home / 20,175.45-27,842.43-11,223.33

Finding the Fourth Proportional to 20,175.45, 27,842.43 and 11,223.33

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Solution

The fourth proportional to 20,175.45, 27,842.43 and 11,223.33 is: 15,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.45 : 27,842.43 = 11,223.33 : x
  2. Step 2: Convert to fraction form
    20,175.45/27,842.43 = 11,223.33/x
  3. Step 3: Cross multiply
    20,175.45x = 27,842.43 × 11,223.33
  4. Step 4: Simplify right side
    20,175.45x = 312,484,779.89
  5. Step 5: Solve for x
    x = 312,484,779.89/20,175.45
  6. Step 6: Final answer
    x = 15,488.37

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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.