Home / 33,130.20-45,720.10-18,983

Finding the Fourth Proportional to 33,130.20, 45,720.10 and 18,983

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Solution

The fourth proportional to 33,130.20, 45,720.10 and 18,983 is: 26,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.20 : 45,720.10 = 18,983 : x
  2. Step 2: Convert to fraction form
    33,130.20/45,720.10 = 18,983/x
  3. Step 3: Cross multiply
    33,130.20x = 45,720.10 × 18,983
  4. Step 4: Simplify right side
    33,130.20x = 867,904,658.30
  5. Step 5: Solve for x
    x = 867,904,658.30/33,130.20
  6. Step 6: Final answer
    x = 26,196.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.