Home / 20,588.56-28,409.94-11,636.06

Finding the Fourth Proportional to 20,588.56, 28,409.94 and 11,636.06

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Solution

The fourth proportional to 20,588.56, 28,409.94 and 11,636.06 is: 16,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.56 : 28,409.94 = 11,636.06 : x
  2. Step 2: Convert to fraction form
    20,588.56/28,409.94 = 11,636.06/x
  3. Step 3: Cross multiply
    20,588.56x = 28,409.94 × 11,636.06
  4. Step 4: Simplify right side
    20,588.56x = 330,579,766.44
  5. Step 5: Solve for x
    x = 330,579,766.44/20,588.56
  6. Step 6: Final answer
    x = 16,056.48

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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.