Home / 30,434.57-45,646.39-13,791.50

Finding the Fourth Proportional to 30,434.57, 45,646.39 and 13,791.50

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Solution

The fourth proportional to 30,434.57, 45,646.39 and 13,791.50 is: 20,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434.57 : 45,646.39 = 13,791.50 : x
  2. Step 2: Convert to fraction form
    30,434.57/45,646.39 = 13,791.50/x
  3. Step 3: Cross multiply
    30,434.57x = 45,646.39 × 13,791.50
  4. Step 4: Simplify right side
    30,434.57x = 629,532,118.73
  5. Step 5: Solve for x
    x = 629,532,118.73/30,434.57
  6. Step 6: Final answer
    x = 20,684.77

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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.