Home / 30,364.72-41,906.30-18,427.12

Finding the Fourth Proportional to 30,364.72, 41,906.30 and 18,427.12

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Solution

The fourth proportional to 30,364.72, 41,906.30 and 18,427.12 is: 25,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,364.72 : 41,906.30 = 18,427.12 : x
  2. Step 2: Convert to fraction form
    30,364.72/41,906.30 = 18,427.12/x
  3. Step 3: Cross multiply
    30,364.72x = 41,906.30 × 18,427.12
  4. Step 4: Simplify right side
    30,364.72x = 772,212,418.86
  5. Step 5: Solve for x
    x = 772,212,418.86/30,364.72
  6. Step 6: Final answer
    x = 25,431.24

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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.