Home / 30,564.41-42,180.62-17,139.96

Finding the Fourth Proportional to 30,564.41, 42,180.62 and 17,139.96

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Solution

The fourth proportional to 30,564.41, 42,180.62 and 17,139.96 is: 23,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,564.41 : 42,180.62 = 17,139.96 : x
  2. Step 2: Convert to fraction form
    30,564.41/42,180.62 = 17,139.96/x
  3. Step 3: Cross multiply
    30,564.41x = 42,180.62 × 17,139.96
  4. Step 4: Simplify right side
    30,564.41x = 722,974,053.88
  5. Step 5: Solve for x
    x = 722,974,053.88/30,564.41
  6. Step 6: Final answer
    x = 23,654.12

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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.