Home / 30,771.85-46,254.13-20,309.12

Finding the Fourth Proportional to 30,771.85, 46,254.13 and 20,309.12

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Solution

The fourth proportional to 30,771.85, 46,254.13 and 20,309.12 is: 30,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,771.85 : 46,254.13 = 20,309.12 : x
  2. Step 2: Convert to fraction form
    30,771.85/46,254.13 = 20,309.12/x
  3. Step 3: Cross multiply
    30,771.85x = 46,254.13 × 20,309.12
  4. Step 4: Simplify right side
    30,771.85x = 939,380,394.62
  5. Step 5: Solve for x
    x = 939,380,394.62/30,771.85
  6. Step 6: Final answer
    x = 30,527.27

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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.