Home / 31,180.25-46,770.78-10,403.75

Finding the Fourth Proportional to 31,180.25, 46,770.78 and 10,403.75

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Solution

The fourth proportional to 31,180.25, 46,770.78 and 10,403.75 is: 15,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,180.25 : 46,770.78 = 10,403.75 : x
  2. Step 2: Convert to fraction form
    31,180.25/46,770.78 = 10,403.75/x
  3. Step 3: Cross multiply
    31,180.25x = 46,770.78 × 10,403.75
  4. Step 4: Simplify right side
    31,180.25x = 486,591,502.43
  5. Step 5: Solve for x
    x = 486,591,502.43/31,180.25
  6. Step 6: Final answer
    x = 15,605.76

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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.