Home / 36,800.20-55,200.30-13,423.60

Finding the Fourth Proportional to 36,800.20, 55,200.30 and 13,423.60

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Solution

The fourth proportional to 36,800.20, 55,200.30 and 13,423.60 is: 20,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,800.20 : 55,200.30 = 13,423.60 : x
  2. Step 2: Convert to fraction form
    36,800.20/55,200.30 = 13,423.60/x
  3. Step 3: Cross multiply
    36,800.20x = 55,200.30 × 13,423.60
  4. Step 4: Simplify right side
    36,800.20x = 740,986,747.08
  5. Step 5: Solve for x
    x = 740,986,747.08/36,800.20
  6. Step 6: Final answer
    x = 20,135.40

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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.