Home / 21,518.48-32,268.60-8,361.86

Finding the Fourth Proportional to 21,518.48, 32,268.60 and 8,361.86

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Solution

The fourth proportional to 21,518.48, 32,268.60 and 8,361.86 is: 12,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.48 : 32,268.60 = 8,361.86 : x
  2. Step 2: Convert to fraction form
    21,518.48/32,268.60 = 8,361.86/x
  3. Step 3: Cross multiply
    21,518.48x = 32,268.60 × 8,361.86
  4. Step 4: Simplify right side
    21,518.48x = 269,825,354.25
  5. Step 5: Solve for x
    x = 269,825,354.25/21,518.48
  6. Step 6: Final answer
    x = 12,539.24

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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.