Home / 36,122.70-54,170.58-12,423.55

Finding the Fourth Proportional to 36,122.70, 54,170.58 and 12,423.55

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Solution

The fourth proportional to 36,122.70, 54,170.58 and 12,423.55 is: 18,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.70 : 54,170.58 = 12,423.55 : x
  2. Step 2: Convert to fraction form
    36,122.70/54,170.58 = 12,423.55/x
  3. Step 3: Cross multiply
    36,122.70x = 54,170.58 × 12,423.55
  4. Step 4: Simplify right side
    36,122.70x = 672,990,909.16
  5. Step 5: Solve for x
    x = 672,990,909.16/36,122.70
  6. Step 6: Final answer
    x = 18,630.69

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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.