Home / 28,134.54-42,209.10-12,563.10

Finding the Fourth Proportional to 28,134.54, 42,209.10 and 12,563.10

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Solution

The fourth proportional to 28,134.54, 42,209.10 and 12,563.10 is: 18,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.54 : 42,209.10 = 12,563.10 : x
  2. Step 2: Convert to fraction form
    28,134.54/42,209.10 = 12,563.10/x
  3. Step 3: Cross multiply
    28,134.54x = 42,209.10 × 12,563.10
  4. Step 4: Simplify right side
    28,134.54x = 530,277,144.21
  5. Step 5: Solve for x
    x = 530,277,144.21/28,134.54
  6. Step 6: Final answer
    x = 18,847.91

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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.