Home / 30,377.79-41,918.45-18,447.66

Finding the Fourth Proportional to 30,377.79, 41,918.45 and 18,447.66

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Solution

The fourth proportional to 30,377.79, 41,918.45 and 18,447.66 is: 25,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.79 : 41,918.45 = 18,447.66 : x
  2. Step 2: Convert to fraction form
    30,377.79/41,918.45 = 18,447.66/x
  3. Step 3: Cross multiply
    30,377.79x = 41,918.45 × 18,447.66
  4. Step 4: Simplify right side
    30,377.79x = 773,297,221.09
  5. Step 5: Solve for x
    x = 773,297,221.09/30,377.79
  6. Step 6: Final answer
    x = 25,456.01

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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.