Home / 37,939.50-56,909.16-12,979.80

Finding the Fourth Proportional to 37,939.50, 56,909.16 and 12,979.80

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Solution

The fourth proportional to 37,939.50, 56,909.16 and 12,979.80 is: 19,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,939.50 : 56,909.16 = 12,979.80 : x
  2. Step 2: Convert to fraction form
    37,939.50/56,909.16 = 12,979.80/x
  3. Step 3: Cross multiply
    37,939.50x = 56,909.16 × 12,979.80
  4. Step 4: Simplify right side
    37,939.50x = 738,669,514.97
  5. Step 5: Solve for x
    x = 738,669,514.97/37,939.50
  6. Step 6: Final answer
    x = 19,469.67

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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.