Home / 30,804.12-42,506.11-17,375.60

Finding the Fourth Proportional to 30,804.12, 42,506.11 and 17,375.60

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Solution

The fourth proportional to 30,804.12, 42,506.11 and 17,375.60 is: 23,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.12 : 42,506.11 = 17,375.60 : x
  2. Step 2: Convert to fraction form
    30,804.12/42,506.11 = 17,375.60/x
  3. Step 3: Cross multiply
    30,804.12x = 42,506.11 × 17,375.60
  4. Step 4: Simplify right side
    30,804.12x = 738,569,164.92
  5. Step 5: Solve for x
    x = 738,569,164.92/30,804.12
  6. Step 6: Final answer
    x = 23,976.31

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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.