Home / 19,768.89-29,650.03-8,672.60

Finding the Fourth Proportional to 19,768.89, 29,650.03 and 8,672.60

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Solution

The fourth proportional to 19,768.89, 29,650.03 and 8,672.60 is: 13,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.89 : 29,650.03 = 8,672.60 : x
  2. Step 2: Convert to fraction form
    19,768.89/29,650.03 = 8,672.60/x
  3. Step 3: Cross multiply
    19,768.89x = 29,650.03 × 8,672.60
  4. Step 4: Simplify right side
    19,768.89x = 257,142,806.82
  5. Step 5: Solve for x
    x = 257,142,806.82/19,768.89
  6. Step 6: Final answer
    x = 13,007.45

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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.