Home / 30,605.94-42,237.81-17,176.50

Finding the Fourth Proportional to 30,605.94, 42,237.81 and 17,176.50

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Solution

The fourth proportional to 30,605.94, 42,237.81 and 17,176.50 is: 23,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.94 : 42,237.81 = 17,176.50 : x
  2. Step 2: Convert to fraction form
    30,605.94/42,237.81 = 17,176.50/x
  3. Step 3: Cross multiply
    30,605.94x = 42,237.81 × 17,176.50
  4. Step 4: Simplify right side
    30,605.94x = 725,497,743.47
  5. Step 5: Solve for x
    x = 725,497,743.47/30,605.94
  6. Step 6: Final answer
    x = 23,704.48

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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.