Home / 28,124-42,171.24-11,474.72

Finding the Fourth Proportional to 28,124, 42,171.24 and 11,474.72

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Solution

The fourth proportional to 28,124, 42,171.24 and 11,474.72 is: 17,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124 : 42,171.24 = 11,474.72 : x
  2. Step 2: Convert to fraction form
    28,124/42,171.24 = 11,474.72/x
  3. Step 3: Cross multiply
    28,124x = 42,171.24 × 11,474.72
  4. Step 4: Simplify right side
    28,124x = 483,903,171.05
  5. Step 5: Solve for x
    x = 483,903,171.05/28,124
  6. Step 6: Final answer
    x = 17,206.06

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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.