Home / 21,824.16-32,739.76-8,676.64

Finding the Fourth Proportional to 21,824.16, 32,739.76 and 8,676.64

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Solution

The fourth proportional to 21,824.16, 32,739.76 and 8,676.64 is: 13,016.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.16 : 32,739.76 = 8,676.64 : x
  2. Step 2: Convert to fraction form
    21,824.16/32,739.76 = 8,676.64/x
  3. Step 3: Cross multiply
    21,824.16x = 32,739.76 × 8,676.64
  4. Step 4: Simplify right side
    21,824.16x = 284,071,111.21
  5. Step 5: Solve for x
    x = 284,071,111.21/21,824.16
  6. Step 6: Final answer
    x = 13,016.36

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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.