Home / 30,621.86-45,933.24-10,899.90

Finding the Fourth Proportional to 30,621.86, 45,933.24 and 10,899.90

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Solution

The fourth proportional to 30,621.86, 45,933.24 and 10,899.90 is: 16,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.86 : 45,933.24 = 10,899.90 : x
  2. Step 2: Convert to fraction form
    30,621.86/45,933.24 = 10,899.90/x
  3. Step 3: Cross multiply
    30,621.86x = 45,933.24 × 10,899.90
  4. Step 4: Simplify right side
    30,621.86x = 500,667,763.55
  5. Step 5: Solve for x
    x = 500,667,763.55/30,621.86
  6. Step 6: Final answer
    x = 16,350.01

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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.