Home / 28,127.25-42,202.50-12,324.09

Finding the Fourth Proportional to 28,127.25, 42,202.50 and 12,324.09

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Solution

The fourth proportional to 28,127.25, 42,202.50 and 12,324.09 is: 18,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.25 : 42,202.50 = 12,324.09 : x
  2. Step 2: Convert to fraction form
    28,127.25/42,202.50 = 12,324.09/x
  3. Step 3: Cross multiply
    28,127.25x = 42,202.50 × 12,324.09
  4. Step 4: Simplify right side
    28,127.25x = 520,107,408.23
  5. Step 5: Solve for x
    x = 520,107,408.23/28,127.25
  6. Step 6: Final answer
    x = 18,491.23

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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.