Home / 30,086.73-41,506.83-18,143.28

Finding the Fourth Proportional to 30,086.73, 41,506.83 and 18,143.28

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Solution

The fourth proportional to 30,086.73, 41,506.83 and 18,143.28 is: 25,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.73 : 41,506.83 = 18,143.28 : x
  2. Step 2: Convert to fraction form
    30,086.73/41,506.83 = 18,143.28/x
  3. Step 3: Cross multiply
    30,086.73x = 41,506.83 × 18,143.28
  4. Step 4: Simplify right side
    30,086.73x = 753,070,038.60
  5. Step 5: Solve for x
    x = 753,070,038.60/30,086.73
  6. Step 6: Final answer
    x = 25,029.97

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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.