Home / 30,538.82-42,140.76-17,110.64

Finding the Fourth Proportional to 30,538.82, 42,140.76 and 17,110.64

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Solution

The fourth proportional to 30,538.82, 42,140.76 and 17,110.64 is: 23,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,538.82 : 42,140.76 = 17,110.64 : x
  2. Step 2: Convert to fraction form
    30,538.82/42,140.76 = 17,110.64/x
  3. Step 3: Cross multiply
    30,538.82x = 42,140.76 × 17,110.64
  4. Step 4: Simplify right side
    30,538.82x = 721,055,414.87
  5. Step 5: Solve for x
    x = 721,055,414.87/30,538.82
  6. Step 6: Final answer
    x = 23,611.11

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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.