Home / 20,234.76-27,928.44-13,148.88

Finding the Fourth Proportional to 20,234.76, 27,928.44 and 13,148.88

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Solution

The fourth proportional to 20,234.76, 27,928.44 and 13,148.88 is: 18,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.76 : 27,928.44 = 13,148.88 : x
  2. Step 2: Convert to fraction form
    20,234.76/27,928.44 = 13,148.88/x
  3. Step 3: Cross multiply
    20,234.76x = 27,928.44 × 13,148.88
  4. Step 4: Simplify right side
    20,234.76x = 367,227,706.15
  5. Step 5: Solve for x
    x = 367,227,706.15/20,234.76
  6. Step 6: Final answer
    x = 18,148.36

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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.