Home / 20,040.50-27,653.60-11,086.76

Finding the Fourth Proportional to 20,040.50, 27,653.60 and 11,086.76

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Solution

The fourth proportional to 20,040.50, 27,653.60 and 11,086.76 is: 15,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.50 : 27,653.60 = 11,086.76 : x
  2. Step 2: Convert to fraction form
    20,040.50/27,653.60 = 11,086.76/x
  3. Step 3: Cross multiply
    20,040.50x = 27,653.60 × 11,086.76
  4. Step 4: Simplify right side
    20,040.50x = 306,588,826.34
  5. Step 5: Solve for x
    x = 306,588,826.34/20,040.50
  6. Step 6: Final answer
    x = 15,298.46

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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.