Home / 28,556.90-39,429.31-22,922.64

Finding the Fourth Proportional to 28,556.90, 39,429.31 and 22,922.64

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Solution

The fourth proportional to 28,556.90, 39,429.31 and 22,922.64 is: 31,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.90 : 39,429.31 = 22,922.64 : x
  2. Step 2: Convert to fraction form
    28,556.90/39,429.31 = 22,922.64/x
  3. Step 3: Cross multiply
    28,556.90x = 39,429.31 × 22,922.64
  4. Step 4: Simplify right side
    28,556.90x = 903,823,821.27
  5. Step 5: Solve for x
    x = 903,823,821.27/28,556.90
  6. Step 6: Final answer
    x = 31,649.93

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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.