Home / 28,236.96-38,961.42-16,749.75

Finding the Fourth Proportional to 28,236.96, 38,961.42 and 16,749.75

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Solution

The fourth proportional to 28,236.96, 38,961.42 and 16,749.75 is: 23,111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.96 : 38,961.42 = 16,749.75 : x
  2. Step 2: Convert to fraction form
    28,236.96/38,961.42 = 16,749.75/x
  3. Step 3: Cross multiply
    28,236.96x = 38,961.42 × 16,749.75
  4. Step 4: Simplify right side
    28,236.96x = 652,594,044.65
  5. Step 5: Solve for x
    x = 652,594,044.65/28,236.96
  6. Step 6: Final answer
    x = 23,111.34

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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.