Home / 30,605.25-42,234.69-17,175.45

Finding the Fourth Proportional to 30,605.25, 42,234.69 and 17,175.45

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Solution

The fourth proportional to 30,605.25, 42,234.69 and 17,175.45 is: 23,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.25 : 42,234.69 = 17,175.45 : x
  2. Step 2: Convert to fraction form
    30,605.25/42,234.69 = 17,175.45/x
  3. Step 3: Cross multiply
    30,605.25x = 42,234.69 × 17,175.45
  4. Step 4: Simplify right side
    30,605.25x = 725,399,806.36
  5. Step 5: Solve for x
    x = 725,399,806.36/30,605.25
  6. Step 6: Final answer
    x = 23,701.81

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1.5x scale

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.