Home / 30,519.96-42,120.19-17,090.97

Finding the Fourth Proportional to 30,519.96, 42,120.19 and 17,090.97

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Solution

The fourth proportional to 30,519.96, 42,120.19 and 17,090.97 is: 23,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.96 : 42,120.19 = 17,090.97 : x
  2. Step 2: Convert to fraction form
    30,519.96/42,120.19 = 17,090.97/x
  3. Step 3: Cross multiply
    30,519.96x = 42,120.19 × 17,090.97
  4. Step 4: Simplify right side
    30,519.96x = 719,874,903.68
  5. Step 5: Solve for x
    x = 719,874,903.68/30,519.96
  6. Step 6: Final answer
    x = 23,587.02

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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.