Home / 20,713.36-28,583.34-11,760.64

Finding the Fourth Proportional to 20,713.36, 28,583.34 and 11,760.64

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Solution

The fourth proportional to 20,713.36, 28,583.34 and 11,760.64 is: 16,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.36 : 28,583.34 = 11,760.64 : x
  2. Step 2: Convert to fraction form
    20,713.36/28,583.34 = 11,760.64/x
  3. Step 3: Cross multiply
    20,713.36x = 28,583.34 × 11,760.64
  4. Step 4: Simplify right side
    20,713.36x = 336,158,371.74
  5. Step 5: Solve for x
    x = 336,158,371.74/20,713.36
  6. Step 6: Final answer
    x = 16,229.06

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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.