Home / 19,245.20-28,867.80-14,579.60

Finding the Fourth Proportional to 19,245.20, 28,867.80 and 14,579.60

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Solution

The fourth proportional to 19,245.20, 28,867.80 and 14,579.60 is: 21,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.20 : 28,867.80 = 14,579.60 : x
  2. Step 2: Convert to fraction form
    19,245.20/28,867.80 = 14,579.60/x
  3. Step 3: Cross multiply
    19,245.20x = 28,867.80 × 14,579.60
  4. Step 4: Simplify right side
    19,245.20x = 420,880,976.88
  5. Step 5: Solve for x
    x = 420,880,976.88/19,245.20
  6. Step 6: Final answer
    x = 21,869.40

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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.