Home / 20,798.37-28,701.34-11,845.64

Finding the Fourth Proportional to 20,798.37, 28,701.34 and 11,845.64

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Solution

The fourth proportional to 20,798.37, 28,701.34 and 11,845.64 is: 16,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.37 : 28,701.34 = 11,845.64 : x
  2. Step 2: Convert to fraction form
    20,798.37/28,701.34 = 11,845.64/x
  3. Step 3: Cross multiply
    20,798.37x = 28,701.34 × 11,845.64
  4. Step 4: Simplify right side
    20,798.37x = 339,985,783.30
  5. Step 5: Solve for x
    x = 339,985,783.30/20,798.37
  6. Step 6: Final answer
    x = 16,346.75

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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.