Home / 30,213.45-41,701.23-16,789.32

Finding the Fourth Proportional to 30,213.45, 41,701.23 and 16,789.32

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Solution

The fourth proportional to 30,213.45, 41,701.23 and 16,789.32 is: 23,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.45 : 41,701.23 = 16,789.32 : x
  2. Step 2: Convert to fraction form
    30,213.45/41,701.23 = 16,789.32/x
  3. Step 3: Cross multiply
    30,213.45x = 41,701.23 × 16,789.32
  4. Step 4: Simplify right side
    30,213.45x = 700,135,294.86
  5. Step 5: Solve for x
    x = 700,135,294.86/30,213.45
  6. Step 6: Final answer
    x = 23,172.97

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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.