Home / 20,619.27-30,928.62-5,037.03

Finding the Fourth Proportional to 20,619.27, 30,928.62 and 5,037.03

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Solution

The fourth proportional to 20,619.27, 30,928.62 and 5,037.03 is: 7,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.27 : 30,928.62 = 5,037.03 : x
  2. Step 2: Convert to fraction form
    20,619.27/30,928.62 = 5,037.03/x
  3. Step 3: Cross multiply
    20,619.27x = 30,928.62 × 5,037.03
  4. Step 4: Simplify right side
    20,619.27x = 155,788,386.80
  5. Step 5: Solve for x
    x = 155,788,386.80/20,619.27
  6. Step 6: Final answer
    x = 7,555.48

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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.