Home / 30,100.53-41,539.04-18,161.57

Finding the Fourth Proportional to 30,100.53, 41,539.04 and 18,161.57

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Solution

The fourth proportional to 30,100.53, 41,539.04 and 18,161.57 is: 25,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.53 : 41,539.04 = 18,161.57 : x
  2. Step 2: Convert to fraction form
    30,100.53/41,539.04 = 18,161.57/x
  3. Step 3: Cross multiply
    30,100.53x = 41,539.04 × 18,161.57
  4. Step 4: Simplify right side
    30,100.53x = 754,414,263.84
  5. Step 5: Solve for x
    x = 754,414,263.84/30,100.53
  6. Step 6: Final answer
    x = 25,063.15

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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.