Home / 20,684.90-28,546.56-11,732.99

Finding the Fourth Proportional to 20,684.90, 28,546.56 and 11,732.99

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Solution

The fourth proportional to 20,684.90, 28,546.56 and 11,732.99 is: 16,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.90 : 28,546.56 = 11,732.99 : x
  2. Step 2: Convert to fraction form
    20,684.90/28,546.56 = 11,732.99/x
  3. Step 3: Cross multiply
    20,684.90x = 28,546.56 × 11,732.99
  4. Step 4: Simplify right side
    20,684.90x = 334,936,360.28
  5. Step 5: Solve for x
    x = 334,936,360.28/20,684.90
  6. Step 6: Final answer
    x = 16,192.31

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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.