Home / 30,621.38-45,932.32-8,435.98

Finding the Fourth Proportional to 30,621.38, 45,932.32 and 8,435.98

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Solution

The fourth proportional to 30,621.38, 45,932.32 and 8,435.98 is: 12,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.38 : 45,932.32 = 8,435.98 : x
  2. Step 2: Convert to fraction form
    30,621.38/45,932.32 = 8,435.98/x
  3. Step 3: Cross multiply
    30,621.38x = 45,932.32 × 8,435.98
  4. Step 4: Simplify right side
    30,621.38x = 387,484,132.87
  5. Step 5: Solve for x
    x = 387,484,132.87/30,621.38
  6. Step 6: Final answer
    x = 12,654.04

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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.