Home / 30,819.56-42,531.03-16,672.37

Finding the Fourth Proportional to 30,819.56, 42,531.03 and 16,672.37

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Solution

The fourth proportional to 30,819.56, 42,531.03 and 16,672.37 is: 23,007.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.56 : 42,531.03 = 16,672.37 : x
  2. Step 2: Convert to fraction form
    30,819.56/42,531.03 = 16,672.37/x
  3. Step 3: Cross multiply
    30,819.56x = 42,531.03 × 16,672.37
  4. Step 4: Simplify right side
    30,819.56x = 709,092,855.99
  5. Step 5: Solve for x
    x = 709,092,855.99/30,819.56
  6. Step 6: Final answer
    x = 23,007.89

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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.