Home / 30,057.85-45,086.41-12,298.02

Finding the Fourth Proportional to 30,057.85, 45,086.41 and 12,298.02

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Solution

The fourth proportional to 30,057.85, 45,086.41 and 12,298.02 is: 18,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.85 : 45,086.41 = 12,298.02 : x
  2. Step 2: Convert to fraction form
    30,057.85/45,086.41 = 12,298.02/x
  3. Step 3: Cross multiply
    30,057.85x = 45,086.41 × 12,298.02
  4. Step 4: Simplify right side
    30,057.85x = 554,473,571.91
  5. Step 5: Solve for x
    x = 554,473,571.91/30,057.85
  6. Step 6: Final answer
    x = 18,446.88

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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.