Home / 28,172.16-42,134.04-25,072.56

Finding the Fourth Proportional to 28,172.16, 42,134.04 and 25,072.56

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Solution

The fourth proportional to 28,172.16, 42,134.04 and 25,072.56 is: 37,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.16 : 42,134.04 = 25,072.56 : x
  2. Step 2: Convert to fraction form
    28,172.16/42,134.04 = 25,072.56/x
  3. Step 3: Cross multiply
    28,172.16x = 42,134.04 × 25,072.56
  4. Step 4: Simplify right side
    28,172.16x = 1,056,408,245.94
  5. Step 5: Solve for x
    x = 1,056,408,245.94/28,172.16
  6. Step 6: Final answer
    x = 37,498.30

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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.