Home / 20,533.92-28,336.77-11,102.46

Finding the Fourth Proportional to 20,533.92, 28,336.77 and 11,102.46

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Solution

The fourth proportional to 20,533.92, 28,336.77 and 11,102.46 is: 15,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.92 : 28,336.77 = 11,102.46 : x
  2. Step 2: Convert to fraction form
    20,533.92/28,336.77 = 11,102.46/x
  3. Step 3: Cross multiply
    20,533.92x = 28,336.77 × 11,102.46
  4. Step 4: Simplify right side
    20,533.92x = 314,607,855.45
  5. Step 5: Solve for x
    x = 314,607,855.45/20,533.92
  6. Step 6: Final answer
    x = 15,321.37

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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.