Home / 30,861.10-46,308.45-16,820.30

Finding the Fourth Proportional to 30,861.10, 46,308.45 and 16,820.30

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Solution

The fourth proportional to 30,861.10, 46,308.45 and 16,820.30 is: 25,239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.10 : 46,308.45 = 16,820.30 : x
  2. Step 2: Convert to fraction form
    30,861.10/46,308.45 = 16,820.30/x
  3. Step 3: Cross multiply
    30,861.10x = 46,308.45 × 16,820.30
  4. Step 4: Simplify right side
    30,861.10x = 778,922,021.54
  5. Step 5: Solve for x
    x = 778,922,021.54/30,861.10
  6. Step 6: Final answer
    x = 25,239.61

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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.