Home / 20,655.56-28,504.76-11,704.80

Finding the Fourth Proportional to 20,655.56, 28,504.76 and 11,704.80

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Solution

The fourth proportional to 20,655.56, 28,504.76 and 11,704.80 is: 16,152.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.56 : 28,504.76 = 11,704.80 : x
  2. Step 2: Convert to fraction form
    20,655.56/28,504.76 = 11,704.80/x
  3. Step 3: Cross multiply
    20,655.56x = 28,504.76 × 11,704.80
  4. Step 4: Simplify right side
    20,655.56x = 333,642,456.32
  5. Step 5: Solve for x
    x = 333,642,456.32/20,655.56
  6. Step 6: Final answer
    x = 16,152.67

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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.