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Finding the Fourth Proportional to 30,161, 45,241.50 and 10,434.26

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Solution

The fourth proportional to 30,161, 45,241.50 and 10,434.26 is: 15,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161 : 45,241.50 = 10,434.26 : x
  2. Step 2: Convert to fraction form
    30,161/45,241.50 = 10,434.26/x
  3. Step 3: Cross multiply
    30,161x = 45,241.50 × 10,434.26
  4. Step 4: Simplify right side
    30,161x = 472,061,573.79
  5. Step 5: Solve for x
    x = 472,061,573.79/30,161
  6. Step 6: Final answer
    x = 15,651.39

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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.