Home / 30,744.39-46,012.34-18,905.60

Finding the Fourth Proportional to 30,744.39, 46,012.34 and 18,905.60

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Solution

The fourth proportional to 30,744.39, 46,012.34 and 18,905.60 is: 28,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,744.39 : 46,012.34 = 18,905.60 : x
  2. Step 2: Convert to fraction form
    30,744.39/46,012.34 = 18,905.60/x
  3. Step 3: Cross multiply
    30,744.39x = 46,012.34 × 18,905.60
  4. Step 4: Simplify right side
    30,744.39x = 869,891,163.42
  5. Step 5: Solve for x
    x = 869,891,163.42/30,744.39
  6. Step 6: Final answer
    x = 28,294.30

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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.