Home / 38,817.72-58,228.74-11,115

Finding the Fourth Proportional to 38,817.72, 58,228.74 and 11,115

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Solution

The fourth proportional to 38,817.72, 58,228.74 and 11,115 is: 16,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,817.72 : 58,228.74 = 11,115 : x
  2. Step 2: Convert to fraction form
    38,817.72/58,228.74 = 11,115/x
  3. Step 3: Cross multiply
    38,817.72x = 58,228.74 × 11,115
  4. Step 4: Simplify right side
    38,817.72x = 647,212,445.10
  5. Step 5: Solve for x
    x = 647,212,445.10/38,817.72
  6. Step 6: Final answer
    x = 16,673.12

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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.