Home / 30,711.78-45,972.32-16,636.86

Finding the Fourth Proportional to 30,711.78, 45,972.32 and 16,636.86

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Solution

The fourth proportional to 30,711.78, 45,972.32 and 16,636.86 is: 24,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.78 : 45,972.32 = 16,636.86 : x
  2. Step 2: Convert to fraction form
    30,711.78/45,972.32 = 16,636.86/x
  3. Step 3: Cross multiply
    30,711.78x = 45,972.32 × 16,636.86
  4. Step 4: Simplify right side
    30,711.78x = 764,835,051.72
  5. Step 5: Solve for x
    x = 764,835,051.72/30,711.78
  6. Step 6: Final answer
    x = 24,903.64

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1.5x scale

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.