Home / 20,462.08-28,236.64-12,076.96

Finding the Fourth Proportional to 20,462.08, 28,236.64 and 12,076.96

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Solution

The fourth proportional to 20,462.08, 28,236.64 and 12,076.96 is: 16,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.08 : 28,236.64 = 12,076.96 : x
  2. Step 2: Convert to fraction form
    20,462.08/28,236.64 = 12,076.96/x
  3. Step 3: Cross multiply
    20,462.08x = 28,236.64 × 12,076.96
  4. Step 4: Simplify right side
    20,462.08x = 341,012,771.81
  5. Step 5: Solve for x
    x = 341,012,771.81/20,462.08
  6. Step 6: Final answer
    x = 16,665.60

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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.