Home / 31,228.37-46,860.87-11,520.66

Finding the Fourth Proportional to 31,228.37, 46,860.87 and 11,520.66

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Solution

The fourth proportional to 31,228.37, 46,860.87 and 11,520.66 is: 17,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,228.37 : 46,860.87 = 11,520.66 : x
  2. Step 2: Convert to fraction form
    31,228.37/46,860.87 = 11,520.66/x
  3. Step 3: Cross multiply
    31,228.37x = 46,860.87 × 11,520.66
  4. Step 4: Simplify right side
    31,228.37x = 539,868,193.78
  5. Step 5: Solve for x
    x = 539,868,193.78/31,228.37
  6. Step 6: Final answer
    x = 17,287.75

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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.