Home / 30,505.28-45,740.94-9,439.35

Finding the Fourth Proportional to 30,505.28, 45,740.94 and 9,439.35

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Solution

The fourth proportional to 30,505.28, 45,740.94 and 9,439.35 is: 14,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505.28 : 45,740.94 = 9,439.35 : x
  2. Step 2: Convert to fraction form
    30,505.28/45,740.94 = 9,439.35/x
  3. Step 3: Cross multiply
    30,505.28x = 45,740.94 × 9,439.35
  4. Step 4: Simplify right side
    30,505.28x = 431,764,741.99
  5. Step 5: Solve for x
    x = 431,764,741.99/30,505.28
  6. Step 6: Final answer
    x = 14,153.77

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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.