Home / 30,697.62-42,361.17-18,119.94

Finding the Fourth Proportional to 30,697.62, 42,361.17 and 18,119.94

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Solution

The fourth proportional to 30,697.62, 42,361.17 and 18,119.94 is: 25,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,697.62 : 42,361.17 = 18,119.94 : x
  2. Step 2: Convert to fraction form
    30,697.62/42,361.17 = 18,119.94/x
  3. Step 3: Cross multiply
    30,697.62x = 42,361.17 × 18,119.94
  4. Step 4: Simplify right side
    30,697.62x = 767,581,858.73
  5. Step 5: Solve for x
    x = 767,581,858.73/30,697.62
  6. Step 6: Final answer
    x = 25,004.60

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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.