Home / 25,021.31-34,450.72-21,236.58

Finding the Fourth Proportional to 25,021.31, 34,450.72 and 21,236.58

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Solution

The fourth proportional to 25,021.31, 34,450.72 and 21,236.58 is: 29,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,021.31 : 34,450.72 = 21,236.58 : x
  2. Step 2: Convert to fraction form
    25,021.31/34,450.72 = 21,236.58/x
  3. Step 3: Cross multiply
    25,021.31x = 34,450.72 × 21,236.58
  4. Step 4: Simplify right side
    25,021.31x = 731,615,418.25
  5. Step 5: Solve for x
    x = 731,615,418.25/25,021.31
  6. Step 6: Final answer
    x = 29,239.70

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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.