Home / 37,015.20-55,522.80-13,638.60

Finding the Fourth Proportional to 37,015.20, 55,522.80 and 13,638.60

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Solution

The fourth proportional to 37,015.20, 55,522.80 and 13,638.60 is: 20,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,015.20 : 55,522.80 = 13,638.60 : x
  2. Step 2: Convert to fraction form
    37,015.20/55,522.80 = 13,638.60/x
  3. Step 3: Cross multiply
    37,015.20x = 55,522.80 × 13,638.60
  4. Step 4: Simplify right side
    37,015.20x = 757,253,260.08
  5. Step 5: Solve for x
    x = 757,253,260.08/37,015.20
  6. Step 6: Final answer
    x = 20,457.90

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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.