Home / 21,975.20-32,919.60-14,976.80

Finding the Fourth Proportional to 21,975.20, 32,919.60 and 14,976.80

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Solution

The fourth proportional to 21,975.20, 32,919.60 and 14,976.80 is: 22,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.20 : 32,919.60 = 14,976.80 : x
  2. Step 2: Convert to fraction form
    21,975.20/32,919.60 = 14,976.80/x
  3. Step 3: Cross multiply
    21,975.20x = 32,919.60 × 14,976.80
  4. Step 4: Simplify right side
    21,975.20x = 493,030,265.28
  5. Step 5: Solve for x
    x = 493,030,265.28/21,975.20
  6. Step 6: Final answer
    x = 22,435.76

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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.