Home / 30,926.90-42,676.52-18,180.48

Finding the Fourth Proportional to 30,926.90, 42,676.52 and 18,180.48

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Solution

The fourth proportional to 30,926.90, 42,676.52 and 18,180.48 is: 25,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,926.90 : 42,676.52 = 18,180.48 : x
  2. Step 2: Convert to fraction form
    30,926.90/42,676.52 = 18,180.48/x
  3. Step 3: Cross multiply
    30,926.90x = 42,676.52 × 18,180.48
  4. Step 4: Simplify right side
    30,926.90x = 775,879,527.43
  5. Step 5: Solve for x
    x = 775,879,527.43/30,926.90
  6. Step 6: Final answer
    x = 25,087.53

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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.