Home / 28,311.34-42,435.87-11,662.29

Finding the Fourth Proportional to 28,311.34, 42,435.87 and 11,662.29

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Solution

The fourth proportional to 28,311.34, 42,435.87 and 11,662.29 is: 17,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.34 : 42,435.87 = 11,662.29 : x
  2. Step 2: Convert to fraction form
    28,311.34/42,435.87 = 11,662.29/x
  3. Step 3: Cross multiply
    28,311.34x = 42,435.87 × 11,662.29
  4. Step 4: Simplify right side
    28,311.34x = 494,899,487.48
  5. Step 5: Solve for x
    x = 494,899,487.48/28,311.34
  6. Step 6: Final answer
    x = 17,480.61

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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.