Home / 28,196.56-38,911.24-15,450.23

Finding the Fourth Proportional to 28,196.56, 38,911.24 and 15,450.23

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Solution

The fourth proportional to 28,196.56, 38,911.24 and 15,450.23 is: 21,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.56 : 38,911.24 = 15,450.23 : x
  2. Step 2: Convert to fraction form
    28,196.56/38,911.24 = 15,450.23/x
  3. Step 3: Cross multiply
    28,196.56x = 38,911.24 × 15,450.23
  4. Step 4: Simplify right side
    28,196.56x = 601,187,374.40
  5. Step 5: Solve for x
    x = 601,187,374.40/28,196.56
  6. Step 6: Final answer
    x = 21,321.30

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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.