Home / 30,317.16-45,480.82-13,676.78

Finding the Fourth Proportional to 30,317.16, 45,480.82 and 13,676.78

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Solution

The fourth proportional to 30,317.16, 45,480.82 and 13,676.78 is: 20,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.16 : 45,480.82 = 13,676.78 : x
  2. Step 2: Convert to fraction form
    30,317.16/45,480.82 = 13,676.78/x
  3. Step 3: Cross multiply
    30,317.16x = 45,480.82 × 13,676.78
  4. Step 4: Simplify right side
    30,317.16x = 622,031,169.36
  5. Step 5: Solve for x
    x = 622,031,169.36/30,317.16
  6. Step 6: Final answer
    x = 20,517.46

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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.