Home / 30,126.70-45,181.41-11,654.38

Finding the Fourth Proportional to 30,126.70, 45,181.41 and 11,654.38

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Solution

The fourth proportional to 30,126.70, 45,181.41 and 11,654.38 is: 17,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.70 : 45,181.41 = 11,654.38 : x
  2. Step 2: Convert to fraction form
    30,126.70/45,181.41 = 11,654.38/x
  3. Step 3: Cross multiply
    30,126.70x = 45,181.41 × 11,654.38
  4. Step 4: Simplify right side
    30,126.70x = 526,561,321.08
  5. Step 5: Solve for x
    x = 526,561,321.08/30,126.70
  6. Step 6: Final answer
    x = 17,478.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.