Home / 20,796.64-28,701.36-11,847.04

Finding the Fourth Proportional to 20,796.64, 28,701.36 and 11,847.04

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Solution

The fourth proportional to 20,796.64, 28,701.36 and 11,847.04 is: 16,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.64 : 28,701.36 = 11,847.04 : x
  2. Step 2: Convert to fraction form
    20,796.64/28,701.36 = 11,847.04/x
  3. Step 3: Cross multiply
    20,796.64x = 28,701.36 × 11,847.04
  4. Step 4: Simplify right side
    20,796.64x = 340,026,159.97
  5. Step 5: Solve for x
    x = 340,026,159.97/20,796.64
  6. Step 6: Final answer
    x = 16,350.05

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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.