Home / 20,423.08-28,182.90-12,037.96

Finding the Fourth Proportional to 20,423.08, 28,182.90 and 12,037.96

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Solution

The fourth proportional to 20,423.08, 28,182.90 and 12,037.96 is: 16,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.08 : 28,182.90 = 12,037.96 : x
  2. Step 2: Convert to fraction form
    20,423.08/28,182.90 = 12,037.96/x
  3. Step 3: Cross multiply
    20,423.08x = 28,182.90 × 12,037.96
  4. Step 4: Simplify right side
    20,423.08x = 339,264,622.88
  5. Step 5: Solve for x
    x = 339,264,622.88/20,423.08
  6. Step 6: Final answer
    x = 16,611.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.