Home / 37,660.80-56,491.20-20,121.60

Finding the Fourth Proportional to 37,660.80, 56,491.20 and 20,121.60

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Solution

The fourth proportional to 37,660.80, 56,491.20 and 20,121.60 is: 30,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,660.80 : 56,491.20 = 20,121.60 : x
  2. Step 2: Convert to fraction form
    37,660.80/56,491.20 = 20,121.60/x
  3. Step 3: Cross multiply
    37,660.80x = 56,491.20 × 20,121.60
  4. Step 4: Simplify right side
    37,660.80x = 1,136,693,329.92
  5. Step 5: Solve for x
    x = 1,136,693,329.92/37,660.80
  6. Step 6: Final answer
    x = 30,182.40

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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.