Home / 30,600.30-42,230.43-17,172.48

Finding the Fourth Proportional to 30,600.30, 42,230.43 and 17,172.48

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Solution

The fourth proportional to 30,600.30, 42,230.43 and 17,172.48 is: 23,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.30 : 42,230.43 = 17,172.48 : x
  2. Step 2: Convert to fraction form
    30,600.30/42,230.43 = 17,172.48/x
  3. Step 3: Cross multiply
    30,600.30x = 42,230.43 × 17,172.48
  4. Step 4: Simplify right side
    30,600.30x = 725,201,214.57
  5. Step 5: Solve for x
    x = 725,201,214.57/30,600.30
  6. Step 6: Final answer
    x = 23,699.15

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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.