Home / 30,615.15-45,934.26-20,846.55

Finding the Fourth Proportional to 30,615.15, 45,934.26 and 20,846.55

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Solution

The fourth proportional to 30,615.15, 45,934.26 and 20,846.55 is: 31,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.15 : 45,934.26 = 20,846.55 : x
  2. Step 2: Convert to fraction form
    30,615.15/45,934.26 = 20,846.55/x
  3. Step 3: Cross multiply
    30,615.15x = 45,934.26 × 20,846.55
  4. Step 4: Simplify right side
    30,615.15x = 957,570,847.80
  5. Step 5: Solve for x
    x = 957,570,847.80/30,615.15
  6. Step 6: Final answer
    x = 31,277.68

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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.