Home / 30,161.30-45,259.59-12,629.66

Finding the Fourth Proportional to 30,161.30, 45,259.59 and 12,629.66

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Solution

The fourth proportional to 30,161.30, 45,259.59 and 12,629.66 is: 18,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.30 : 45,259.59 = 12,629.66 : x
  2. Step 2: Convert to fraction form
    30,161.30/45,259.59 = 12,629.66/x
  3. Step 3: Cross multiply
    30,161.30x = 45,259.59 × 12,629.66
  4. Step 4: Simplify right side
    30,161.30x = 571,613,233.44
  5. Step 5: Solve for x
    x = 571,613,233.44/30,161.30
  6. Step 6: Final answer
    x = 18,951.88

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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.