Home / 20,627.55-28,466.47-11,675.06

Finding the Fourth Proportional to 20,627.55, 28,466.47 and 11,675.06

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Solution

The fourth proportional to 20,627.55, 28,466.47 and 11,675.06 is: 16,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.55 : 28,466.47 = 11,675.06 : x
  2. Step 2: Convert to fraction form
    20,627.55/28,466.47 = 11,675.06/x
  3. Step 3: Cross multiply
    20,627.55x = 28,466.47 × 11,675.06
  4. Step 4: Simplify right side
    20,627.55x = 332,347,724.25
  5. Step 5: Solve for x
    x = 332,347,724.25/20,627.55
  6. Step 6: Final answer
    x = 16,111.84

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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.