Home / 28,619.01-42,933.12-13,829.02

Finding the Fourth Proportional to 28,619.01, 42,933.12 and 13,829.02

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Solution

The fourth proportional to 28,619.01, 42,933.12 and 13,829.02 is: 20,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.01 : 42,933.12 = 13,829.02 : x
  2. Step 2: Convert to fraction form
    28,619.01/42,933.12 = 13,829.02/x
  3. Step 3: Cross multiply
    28,619.01x = 42,933.12 × 13,829.02
  4. Step 4: Simplify right side
    28,619.01x = 593,722,975.14
  5. Step 5: Solve for x
    x = 593,722,975.14/28,619.01
  6. Step 6: Final answer
    x = 20,745.76

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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.