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Finding the Fourth Proportional to 28,656, 43,008.58 and 16,188.28

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Solution

The fourth proportional to 28,656, 43,008.58 and 16,188.28 is: 24,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656 : 43,008.58 = 16,188.28 : x
  2. Step 2: Convert to fraction form
    28,656/43,008.58 = 16,188.28/x
  3. Step 3: Cross multiply
    28,656x = 43,008.58 × 16,188.28
  4. Step 4: Simplify right side
    28,656x = 696,234,935.44
  5. Step 5: Solve for x
    x = 696,234,935.44/28,656
  6. Step 6: Final answer
    x = 24,296.31

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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.