Home / 30,880.55-46,319.61-21,493.46

Finding the Fourth Proportional to 30,880.55, 46,319.61 and 21,493.46

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Solution

The fourth proportional to 30,880.55, 46,319.61 and 21,493.46 is: 32,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880.55 : 46,319.61 = 21,493.46 : x
  2. Step 2: Convert to fraction form
    30,880.55/46,319.61 = 21,493.46/x
  3. Step 3: Cross multiply
    30,880.55x = 46,319.61 × 21,493.46
  4. Step 4: Simplify right side
    30,880.55x = 995,568,684.75
  5. Step 5: Solve for x
    x = 995,568,684.75/30,880.55
  6. Step 6: Final answer
    x = 32,239.34

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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.