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Finding the Fourth Proportional to 28,650.86, 42,958.62 and 9,926.54

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Solution

The fourth proportional to 28,650.86, 42,958.62 and 9,926.54 is: 14,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.86 : 42,958.62 = 9,926.54 : x
  2. Step 2: Convert to fraction form
    28,650.86/42,958.62 = 9,926.54/x
  3. Step 3: Cross multiply
    28,650.86x = 42,958.62 × 9,926.54
  4. Step 4: Simplify right side
    28,650.86x = 426,430,459.77
  5. Step 5: Solve for x
    x = 426,430,459.77/28,650.86
  6. Step 6: Final answer
    x = 14,883.69

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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.