Home / 28,751.85-43,131.81-12,101.49

Finding the Fourth Proportional to 28,751.85, 43,131.81 and 12,101.49

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Solution

The fourth proportional to 28,751.85, 43,131.81 and 12,101.49 is: 18,153.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.85 : 43,131.81 = 12,101.49 : x
  2. Step 2: Convert to fraction form
    28,751.85/43,131.81 = 12,101.49/x
  3. Step 3: Cross multiply
    28,751.85x = 43,131.81 × 12,101.49
  4. Step 4: Simplify right side
    28,751.85x = 521,959,167.40
  5. Step 5: Solve for x
    x = 521,959,167.40/28,751.85
  6. Step 6: Final answer
    x = 18,153.93

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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.