Home / 21,619.44-32,427.48-6,828.80

Finding the Fourth Proportional to 21,619.44, 32,427.48 and 6,828.80

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Solution

The fourth proportional to 21,619.44, 32,427.48 and 6,828.80 is: 10,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.44 : 32,427.48 = 6,828.80 : x
  2. Step 2: Convert to fraction form
    21,619.44/32,427.48 = 6,828.80/x
  3. Step 3: Cross multiply
    21,619.44x = 32,427.48 × 6,828.80
  4. Step 4: Simplify right side
    21,619.44x = 221,440,775.42
  5. Step 5: Solve for x
    x = 221,440,775.42/21,619.44
  6. Step 6: Final answer
    x = 10,242.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.