Home / 30,608.90-42,240.30-17,181.44

Finding the Fourth Proportional to 30,608.90, 42,240.30 and 17,181.44

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Solution

The fourth proportional to 30,608.90, 42,240.30 and 17,181.44 is: 23,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.90 : 42,240.30 = 17,181.44 : x
  2. Step 2: Convert to fraction form
    30,608.90/42,240.30 = 17,181.44/x
  3. Step 3: Cross multiply
    30,608.90x = 42,240.30 × 17,181.44
  4. Step 4: Simplify right side
    30,608.90x = 725,749,180.03
  5. Step 5: Solve for x
    x = 725,749,180.03/30,608.90
  6. Step 6: Final answer
    x = 23,710.40

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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.