Home / 21,553.94-32,298.50-12,183.86

Finding the Fourth Proportional to 21,553.94, 32,298.50 and 12,183.86

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Solution

The fourth proportional to 21,553.94, 32,298.50 and 12,183.86 is: 18,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.94 : 32,298.50 = 12,183.86 : x
  2. Step 2: Convert to fraction form
    21,553.94/32,298.50 = 12,183.86/x
  3. Step 3: Cross multiply
    21,553.94x = 32,298.50 × 12,183.86
  4. Step 4: Simplify right side
    21,553.94x = 393,520,271.18
  5. Step 5: Solve for x
    x = 393,520,271.18/21,553.94
  6. Step 6: Final answer
    x = 18,257.47

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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.