Home / 30,709.78-45,969.32-16,634.86

Finding the Fourth Proportional to 30,709.78, 45,969.32 and 16,634.86

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Solution

The fourth proportional to 30,709.78, 45,969.32 and 16,634.86 is: 24,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,709.78 : 45,969.32 = 16,634.86 : x
  2. Step 2: Convert to fraction form
    30,709.78/45,969.32 = 16,634.86/x
  3. Step 3: Cross multiply
    30,709.78x = 45,969.32 × 16,634.86
  4. Step 4: Simplify right side
    30,709.78x = 764,693,129.16
  5. Step 5: Solve for x
    x = 764,693,129.16/30,709.78
  6. Step 6: Final answer
    x = 24,900.64

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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.