Home / 28,788.66-39,714.30-18,576.90

Finding the Fourth Proportional to 28,788.66, 39,714.30 and 18,576.90

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Solution

The fourth proportional to 28,788.66, 39,714.30 and 18,576.90 is: 25,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.66 : 39,714.30 = 18,576.90 : x
  2. Step 2: Convert to fraction form
    28,788.66/39,714.30 = 18,576.90/x
  3. Step 3: Cross multiply
    28,788.66x = 39,714.30 × 18,576.90
  4. Step 4: Simplify right side
    28,788.66x = 737,768,579.67
  5. Step 5: Solve for x
    x = 737,768,579.67/28,788.66
  6. Step 6: Final answer
    x = 25,627.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.