Home / 20,562.18-28,372.75-11,609.48

Finding the Fourth Proportional to 20,562.18, 28,372.75 and 11,609.48

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Solution

The fourth proportional to 20,562.18, 28,372.75 and 11,609.48 is: 16,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.18 : 28,372.75 = 11,609.48 : x
  2. Step 2: Convert to fraction form
    20,562.18/28,372.75 = 11,609.48/x
  3. Step 3: Cross multiply
    20,562.18x = 28,372.75 × 11,609.48
  4. Step 4: Simplify right side
    20,562.18x = 329,392,915.58
  5. Step 5: Solve for x
    x = 329,392,915.58/20,562.18
  6. Step 6: Final answer
    x = 16,019.36

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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.