Home / 21,608.80-32,412.30-6,828.34

Finding the Fourth Proportional to 21,608.80, 32,412.30 and 6,828.34

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Solution

The fourth proportional to 21,608.80, 32,412.30 and 6,828.34 is: 10,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.80 : 32,412.30 = 6,828.34 : x
  2. Step 2: Convert to fraction form
    21,608.80/32,412.30 = 6,828.34/x
  3. Step 3: Cross multiply
    21,608.80x = 32,412.30 × 6,828.34
  4. Step 4: Simplify right side
    21,608.80x = 221,322,204.58
  5. Step 5: Solve for x
    x = 221,322,204.58/21,608.80
  6. Step 6: Final answer
    x = 10,242.23

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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.