Home / 37,172.20-55,739.84-13,478.80

Finding the Fourth Proportional to 37,172.20, 55,739.84 and 13,478.80

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Solution

The fourth proportional to 37,172.20, 55,739.84 and 13,478.80 is: 20,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,172.20 : 55,739.84 = 13,478.80 : x
  2. Step 2: Convert to fraction form
    37,172.20/55,739.84 = 13,478.80/x
  3. Step 3: Cross multiply
    37,172.20x = 55,739.84 × 13,478.80
  4. Step 4: Simplify right side
    37,172.20x = 751,306,155.39
  5. Step 5: Solve for x
    x = 751,306,155.39/37,172.20
  6. Step 6: Final answer
    x = 20,211.51

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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.