Home / 30,339.05-45,472.82-13,679.57

Finding the Fourth Proportional to 30,339.05, 45,472.82 and 13,679.57

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Solution

The fourth proportional to 30,339.05, 45,472.82 and 13,679.57 is: 20,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.05 : 45,472.82 = 13,679.57 : x
  2. Step 2: Convert to fraction form
    30,339.05/45,472.82 = 13,679.57/x
  3. Step 3: Cross multiply
    30,339.05x = 45,472.82 × 13,679.57
  4. Step 4: Simplify right side
    30,339.05x = 622,048,669.57
  5. Step 5: Solve for x
    x = 622,048,669.57/30,339.05
  6. Step 6: Final answer
    x = 20,503.24

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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.