Home / 30,581.17-42,198.64-17,149.66

Finding the Fourth Proportional to 30,581.17, 42,198.64 and 17,149.66

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Solution

The fourth proportional to 30,581.17, 42,198.64 and 17,149.66 is: 23,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581.17 : 42,198.64 = 17,149.66 : x
  2. Step 2: Convert to fraction form
    30,581.17/42,198.64 = 17,149.66/x
  3. Step 3: Cross multiply
    30,581.17x = 42,198.64 × 17,149.66
  4. Step 4: Simplify right side
    30,581.17x = 723,692,180.09
  5. Step 5: Solve for x
    x = 723,692,180.09/30,581.17
  6. Step 6: Final answer
    x = 23,664.64

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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.