Home / 20,584.20-28,407.86-11,633.56

Finding the Fourth Proportional to 20,584.20, 28,407.86 and 11,633.56

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Solution

The fourth proportional to 20,584.20, 28,407.86 and 11,633.56 is: 16,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.20 : 28,407.86 = 11,633.56 : x
  2. Step 2: Convert to fraction form
    20,584.20/28,407.86 = 11,633.56/x
  3. Step 3: Cross multiply
    20,584.20x = 28,407.86 × 11,633.56
  4. Step 4: Simplify right side
    20,584.20x = 330,484,401.74
  5. Step 5: Solve for x
    x = 330,484,401.74/20,584.20
  6. Step 6: Final answer
    x = 16,055.25

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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.