Home / 28,977.87-43,461.68-13,179.20

Finding the Fourth Proportional to 28,977.87, 43,461.68 and 13,179.20

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Solution

The fourth proportional to 28,977.87, 43,461.68 and 13,179.20 is: 19,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.87 : 43,461.68 = 13,179.20 : x
  2. Step 2: Convert to fraction form
    28,977.87/43,461.68 = 13,179.20/x
  3. Step 3: Cross multiply
    28,977.87x = 43,461.68 × 13,179.20
  4. Step 4: Simplify right side
    28,977.87x = 572,789,889.85
  5. Step 5: Solve for x
    x = 572,789,889.85/28,977.87
  6. Step 6: Final answer
    x = 19,766.46

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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.