Home / 20,428.29-30,668.36-17,369.73

Finding the Fourth Proportional to 20,428.29, 30,668.36 and 17,369.73

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Solution

The fourth proportional to 20,428.29, 30,668.36 and 17,369.73 is: 26,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.29 : 30,668.36 = 17,369.73 : x
  2. Step 2: Convert to fraction form
    20,428.29/30,668.36 = 17,369.73/x
  3. Step 3: Cross multiply
    20,428.29x = 30,668.36 × 17,369.73
  4. Step 4: Simplify right side
    20,428.29x = 532,701,045.89
  5. Step 5: Solve for x
    x = 532,701,045.89/20,428.29
  6. Step 6: Final answer
    x = 26,076.63

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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.