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Finding the Fourth Proportional to 28,676, 43,028.58 and 13,097.28

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Solution

The fourth proportional to 28,676, 43,028.58 and 13,097.28 is: 19,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676 : 43,028.58 = 13,097.28 : x
  2. Step 2: Convert to fraction form
    28,676/43,028.58 = 13,097.28/x
  3. Step 3: Cross multiply
    28,676x = 43,028.58 × 13,097.28
  4. Step 4: Simplify right side
    28,676x = 563,557,360.26
  5. Step 5: Solve for x
    x = 563,557,360.26/28,676
  6. Step 6: Final answer
    x = 19,652.58

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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.