Home / 20,466.36-28,241.58-11,513.67

Finding the Fourth Proportional to 20,466.36, 28,241.58 and 11,513.67

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Solution

The fourth proportional to 20,466.36, 28,241.58 and 11,513.67 is: 15,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.36 : 28,241.58 = 11,513.67 : x
  2. Step 2: Convert to fraction form
    20,466.36/28,241.58 = 11,513.67/x
  3. Step 3: Cross multiply
    20,466.36x = 28,241.58 × 11,513.67
  4. Step 4: Simplify right side
    20,466.36x = 325,164,232.40
  5. Step 5: Solve for x
    x = 325,164,232.40/20,466.36
  6. Step 6: Final answer
    x = 15,887.74

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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.