Home / 20,588.21-28,411.37-11,635.54

Finding the Fourth Proportional to 20,588.21, 28,411.37 and 11,635.54

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Solution

The fourth proportional to 20,588.21, 28,411.37 and 11,635.54 is: 16,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.21 : 28,411.37 = 11,635.54 : x
  2. Step 2: Convert to fraction form
    20,588.21/28,411.37 = 11,635.54/x
  3. Step 3: Cross multiply
    20,588.21x = 28,411.37 × 11,635.54
  4. Step 4: Simplify right side
    20,588.21x = 330,581,632.09
  5. Step 5: Solve for x
    x = 330,581,632.09/20,588.21
  6. Step 6: Final answer
    x = 16,056.84

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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.