Home / 14,821.20-22,231.80-4,431.60

Finding the Fourth Proportional to 14,821.20, 22,231.80 and 4,431.60

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Solution

The fourth proportional to 14,821.20, 22,231.80 and 4,431.60 is: 6,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.20 : 22,231.80 = 4,431.60 : x
  2. Step 2: Convert to fraction form
    14,821.20/22,231.80 = 4,431.60/x
  3. Step 3: Cross multiply
    14,821.20x = 22,231.80 × 4,431.60
  4. Step 4: Simplify right side
    14,821.20x = 98,522,444.88
  5. Step 5: Solve for x
    x = 98,522,444.88/14,821.20
  6. Step 6: Final answer
    x = 6,647.40

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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.