Home / 20,466.64-28,243.85-11,513.96

Finding the Fourth Proportional to 20,466.64, 28,243.85 and 11,513.96

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Solution

The fourth proportional to 20,466.64, 28,243.85 and 11,513.96 is: 15,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.64 : 28,243.85 = 11,513.96 : x
  2. Step 2: Convert to fraction form
    20,466.64/28,243.85 = 11,513.96/x
  3. Step 3: Cross multiply
    20,466.64x = 28,243.85 × 11,513.96
  4. Step 4: Simplify right side
    20,466.64x = 325,198,466.27
  5. Step 5: Solve for x
    x = 325,198,466.27/20,466.64
  6. Step 6: Final answer
    x = 15,889.20

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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.