Home / 21,423.87-32,137.33-6,630.88

Finding the Fourth Proportional to 21,423.87, 32,137.33 and 6,630.88

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Solution

The fourth proportional to 21,423.87, 32,137.33 and 6,630.88 is: 9,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.87 : 32,137.33 = 6,630.88 : x
  2. Step 2: Convert to fraction form
    21,423.87/32,137.33 = 6,630.88/x
  3. Step 3: Cross multiply
    21,423.87x = 32,137.33 × 6,630.88
  4. Step 4: Simplify right side
    21,423.87x = 213,098,778.75
  5. Step 5: Solve for x
    x = 213,098,778.75/21,423.87
  6. Step 6: Final answer
    x = 9,946.79

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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.