Home / 30,514.98-45,744.30-11,789.40

Finding the Fourth Proportional to 30,514.98, 45,744.30 and 11,789.40

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Solution

The fourth proportional to 30,514.98, 45,744.30 and 11,789.40 is: 17,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,514.98 : 45,744.30 = 11,789.40 : x
  2. Step 2: Convert to fraction form
    30,514.98/45,744.30 = 11,789.40/x
  3. Step 3: Cross multiply
    30,514.98x = 45,744.30 × 11,789.40
  4. Step 4: Simplify right side
    30,514.98x = 539,297,850.42
  5. Step 5: Solve for x
    x = 539,297,850.42/30,514.98
  6. Step 6: Final answer
    x = 17,673.22

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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.