Home / 30,629.90-45,920.55-16,778.90

Finding the Fourth Proportional to 30,629.90, 45,920.55 and 16,778.90

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Solution

The fourth proportional to 30,629.90, 45,920.55 and 16,778.90 is: 25,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.90 : 45,920.55 = 16,778.90 : x
  2. Step 2: Convert to fraction form
    30,629.90/45,920.55 = 16,778.90/x
  3. Step 3: Cross multiply
    30,629.90x = 45,920.55 × 16,778.90
  4. Step 4: Simplify right side
    30,629.90x = 770,496,316.40
  5. Step 5: Solve for x
    x = 770,496,316.40/30,629.90
  6. Step 6: Final answer
    x = 25,155.04

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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.