Home / 21,991.25-33,032.57-17,779.26

Finding the Fourth Proportional to 21,991.25, 33,032.57 and 17,779.26

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Solution

The fourth proportional to 21,991.25, 33,032.57 and 17,779.26 is: 26,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.25 : 33,032.57 = 17,779.26 : x
  2. Step 2: Convert to fraction form
    21,991.25/33,032.57 = 17,779.26/x
  3. Step 3: Cross multiply
    21,991.25x = 33,032.57 × 17,779.26
  4. Step 4: Simplify right side
    21,991.25x = 587,294,785.48
  5. Step 5: Solve for x
    x = 587,294,785.48/21,991.25
  6. Step 6: Final answer
    x = 26,705.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.