Home / 21,919.60-32,879.40-6,124.60

Finding the Fourth Proportional to 21,919.60, 32,879.40 and 6,124.60

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Solution

The fourth proportional to 21,919.60, 32,879.40 and 6,124.60 is: 9,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919.60 : 32,879.40 = 6,124.60 : x
  2. Step 2: Convert to fraction form
    21,919.60/32,879.40 = 6,124.60/x
  3. Step 3: Cross multiply
    21,919.60x = 32,879.40 × 6,124.60
  4. Step 4: Simplify right side
    21,919.60x = 201,373,173.24
  5. Step 5: Solve for x
    x = 201,373,173.24/21,919.60
  6. Step 6: Final answer
    x = 9,186.90

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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.