Home / 30,057.30-45,044.91-11,318.49

Finding the Fourth Proportional to 30,057.30, 45,044.91 and 11,318.49

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Solution

The fourth proportional to 30,057.30, 45,044.91 and 11,318.49 is: 16,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.30 : 45,044.91 = 11,318.49 : x
  2. Step 2: Convert to fraction form
    30,057.30/45,044.91 = 11,318.49/x
  3. Step 3: Cross multiply
    30,057.30x = 45,044.91 × 11,318.49
  4. Step 4: Simplify right side
    30,057.30x = 509,840,363.39
  5. Step 5: Solve for x
    x = 509,840,363.39/30,057.30
  6. Step 6: Final answer
    x = 16,962.28

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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.